133 (one hundred ndthirty-three) is the

natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''cardinal ...

following 132 and preceding 134.

In mathematics

133 is an ''n'' whose divisors (excluding ''n'' itself) added up divide φ(''n''). It is an

octagonal number An octagonal number is a figurate number that represents an octagon. The octagonal number for ''n'' is given by the formula 3''n''2 - 2''n'', with ''n'' > 0. The first few octagonal numbers are : 1, 8, 21, 40, 65, 96, 133, 176, 225, 280, 34 ...

and a

happy number In number theory, a happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. For instance, 13 is a happy number because 1^2+3^2=10, and 1^2+0^2=1. On the other hand, 4 is not a happy number because ...

. 133 is a

repdigit In recreational mathematics, a repdigit or sometimes monodigit is a natural number composed of repeated instances of the same digit in a positional number system (often implicitly decimal). The word is a portmanteau of repeated and digit. Example ...

in base 11 (111) and base 18 (77), whilst in

base 20 vigesimal () or base-20 (base-score) numeral system is based on twenty (in the same way in which the decimal numeral system is based on ten). ''Vigesimal'' is derived from the Latin adjective '' vicesimus'', meaning 'twentieth'. Places In ...

it is a

cyclic number A cyclic number is an integer for which cyclic permutations of the digits are successive integer multiples of the number. The most widely known is the six-digit number 142857, whose first six integer multiples are :142857 × 1 = 142857 :14 ...

formed from the

reciprocal Reciprocal may refer to: In mathematics * Multiplicative inverse, in mathematics, the number 1/''x'', which multiplied by ''x'' gives the product 1, also known as a ''reciprocal'' * Reciprocal polynomial, a polynomial obtained from another pol ...

of the number three. 133 is a

semiprime In mathematics, a semiprime is a natural number that is the product of exactly two prime numbers. The two primes in the product may equal each other, so the semiprimes include the squares of prime numbers. Because there are infinitely many prime ...

: a product of two

prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...

s, namely 7 and 19. Since those prime factors are

Gaussian prime In number theory, a Gaussian integer is a complex number whose real and imaginary parts are both integers. The Gaussian integers, with ordinary addition and multiplication of complex numbers, form an integral domain, usually written as \mathbf /ma ...

s, this means that 133 is a

Blum integer In mathematics, a natural number ''n'' is a Blum integer if is a semiprime for which ''p'' and ''q'' are distinct prime numbers congruent to 3 mod 4.Joe Hurd, Blum Integers (1997), retrieved 17 Jan, 2011 from http://www.gilith.com/research/tal ...

. 133 is the number of compositions of 13 into distinct parts.

In the military

Douglas C-133 Cargomaster The Douglas C-133 Cargomaster is an American large turboprop cargo aircraft built between 1956 and 1961 by the Douglas Aircraft Company for use with the United States Air Force. The C-133 was the USAF's only production turboprop-powered stra ...

was a United States

cargo aircraft A cargo aircraft (also known as freight aircraft, freighter, airlifter or cargo jet) is a fixed-wing aircraft that is designed or converted for the carriage of cargo rather than passengers. Such aircraft usually do not incorporate passenger ...

built between 1956 and 1961 * is a heavy landing craft which launched in 1972 * was a

United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

''Mission Buenaventura''-class

fleet oiler A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers. The ...

s during World War II * was a United States Navy during World War II * was a United States Navy during World War II * was a United States Navy ''General G. O. Squier''-class transport ship during World War II * was a United States Navy during World War I * was a United States Navy during World War II * was a United States Navy during World War II * was a United States Navy S-class submarine during World War II * was a United States Navy during World War II * was a United States Navy

heavy cruiser The heavy cruiser was a type of cruiser, a naval warship designed for long range and high speed, armed generally with naval guns of roughly 203 mm (8 inches) in caliber, whose design parameters were dictated by the Washington Naval T ...

during the

Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...

* Frontstalag 133 was a temporary German

prisoner of war A prisoner of war (POW) is a person who is held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610. Belligerents hold prisoners of w ...

camp during World War II located near Rennes, northern France *

Caproni Ca.133 The Caproni Ca.133 was a three-engined transport/bomber aircraft used by the Italian ''Regia Aeronautica'' from the Second Italo-Abyssinian War until World War II. Originally developed as a civilian airliner and successor to the Ca.101, the ...

was a three-engine transport/

bomber A bomber is a military combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), launching torpedoes, or deploying air-launched cruise missiles. The first use of bombs dropped from an air ...

aircraft used by the

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...

Regia Aeronautica from the Second Italo-Abyssinian War until World War II *

Naval Mobile Construction Battalion 133 Naval Mobile Construction Battalion 133 (NMCB 133) is a United States Navy Construction Battalion, otherwise known as a Seabee Battalion, homeported at the Naval Construction Battalion Center (Gulfport, Mississippi) (aka: Naval Mobile Constructio ...

is an active duty

Seabee , colors = , mascot = Bumblebee , battles = Guadalcanal, Bougainville, Cape Gloucester, Los Negros, Guam, Peleliu, Tarawa, Kwajalein, Saipan, Tinian, Iwo Jima, Philippin ...

battalion originally commissioned during World War II as the 133rd Naval Construction Battalion(NCB)

In transportation

London Buses route 133 London Buses route 133 is a Transport for London contracted bus route in London, England, running between Streatham and Liverpool Street stations. History Route 133 commenced operating on 27 March 1929 from South Croydon to Liverpool Stre ...

is a Transport for London contracted bus route in London * RATB route 133 is bus route run by RATB in

Bucharest Bucharest ( , ; ro, București ) is the capital and largest city of Romania, as well as its cultural, industrial, and financial centre. It is located in the southeast of the country, on the banks of the Dâmbovița River, less than north of ...

, Romania * The

Fiat 133 133 may refer to: *133 (number) * AD 133 *133 BC *133 (song) 133 may refer to: *133 (number) *AD 133 *133 BC *133 (song) *133 (New Jersey bus) 133 may refer to: *133 (number) *AD 133 Year 133 ( CXXXIII) was a common year starting on Wednesd ...

, also called

SEAT 133 The SEAT 133 is a small rear-engined car designed and sold by SEAT in Spain from 1974 until 1979. The car used the chassis and engine of the by then defunct Fiat/SEAT 850 and featured a new body in the style of the contemporary, somewhat smaller a ...

, was a small rear-engine car developed in Spain between 1974 and 1979 *

STS-133 STS-133 ( ISS assembly flight ULF5) was the 133rd mission in NASA's Space Shuttle program; during the mission, Space Shuttle ''Discovery'' docked with the International Space Station. It was ''Discoverys 39th and final mission. The mission l ...

is a Space Shuttle ''Endeavour'' contingency mission which was ''Discoverys 39th and final mission. The mission launched on 24 February 2011, and landed on 9 March 2011. * The Bücker Bü 133 Jungmeister was a single-engine, single-seat biplane trainer of the

Luftwaffe The ''Luftwaffe'' () was the aerial-warfare branch of the German ''Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the ''Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabtei ...

in the 1930s

In other fields

133 is also: * The nickname of Craig Jones * The year AD 133 or 133 BC * 133 AH is a year in the

Islamic calendar The Hijri calendar ( ar, ٱلتَّقْوِيم ٱلْهِجْرِيّ, translit=al-taqwīm al-hijrī), also known in English as the Muslim calendar and Islamic calendar, is a lunar calendar consisting of 12 lunar months in a year of 354 ...

that corresponds to 750 – 751 CE * 133P/Elst-Pizarro is a body with characteristics of both asteroids and

comet A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena ...

s, a prototype of main-belt comets * 133 Cyrene is an S-type

main belt The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...

asteroid * The

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

of an element temporarily called untritrium. *

Xenon-133 Naturally occurring xenon (54Xe) consists of seven stable isotopes and two very long-lived isotopes. Double electron capture has been observed in 124Xe (half-life ) and double beta decay in 136Xe (half-life ), which are among the longest measured ...

is an

isotope Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numb ...

xenon Xenon is a chemical element with the symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can undergo a few chemical reactions such as the ...

. It is a radionuclide that is inhaled to assess pulmonary function, and to image the lungs * 133 is the police

emergency telephone number Most public switched telephone networks have a single emergency telephone number (sometimes known as the universal emergency telephone number or the emergency services number) that allows a caller to contact local emergency services for assis ...

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...

* "133" is the name of a

David Guetta Pierre David Guetta ( , ; born 7 November 1967) is a French DJ and music producer. He has over 10 million album and 65 million single sales globally, with more than 10 billion streams. In 2011, 2020 and 2021, Guetta was voted the number one D ...

song, from the album '' Just a Little More Love'' (perhaps because it is a happy number) * Cosmos 133 was a

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...

Soyuz programme The Soyuz programme ( , ; russian: link=no, Союз , meaning "Union") is a human spaceflight programme initiated by the Soviet Union in the early 1960s. The Soyuz spacecraft was originally part of a Moon landing project intended to put a So ...

test

satellite A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioi ...

launched from the Baikonur cosmodrome aboard a

Vostok rocket Vostok (Russian: Восток, translated as "East") was a family of rockets derived from the Soviet R-7 Semyorka ICBM and was designed for the human spaceflight programme. This family of rockets launched the first artificial satellite ( Spu ...

in 1966 *

PC133 Synchronous dynamic random-access memory (synchronous dynamic RAM or SDRAM) is any DRAM where the operation of its external pin interface is coordinated by an externally supplied clock signal. DRAM integrated circuits (ICs) produced from the ea ...

is a computer memory standard defined by the

JEDEC The JEDEC Solid State Technology Association is an independent semiconductor engineering trade organization and standardization body headquartered in Arlington County, Virginia, United States. JEDEC has over 300 members, including some of the w ...

FASB 133 Launched prior to the millennium, (and subsequently amended) FAS 133 ''Accounting for Derivative Instruments and Hedging Activities'' provided an "integrated accounting framework for derivative instruments and hedging activities." FAS 133 Overvi ...

is a Statements of Financial Accounting Standards No. 133, Accounting for Derivative Instruments and Hedging Activities, an accounting standard issued in 2001 by the Financial Accounting Standards Board that provides companies with the ability to measure assets and liabilities *

OMB A-133 Compliance Supplement The OMB A-133 Compliance Supplement is a large and extensive Federal government of the United States, United States federal government guide created by the Office of Management and Budget (OMB) and used in auditing Federal assistance in the United S ...

is a guide created by the

Office of Management and Budget The Office of Management and Budget (OMB) is the largest office within the Executive Office of the President of the United States (EOP). OMB's most prominent function is to produce the president's budget, but it also examines agency programs, pol ...

(OMB) for auditing United States

Federal assistance In the United States, federal assistance, also known as federal aid, federal benefits, or federal funds, is defined as any federal program, project, service, or activity provided by the federal government that directly assists domestic governme ...

and Federal grants * The 2006 film
133 Skyway
' starring Terry Barnhart from Big Soul Productions Inc. * Sonnet 133 by

William Shakespeare William Shakespeare ( 26 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's nation ...

* The

Municipal District of Spirit River No. 133 The Municipal District of Spirit River No. 133 is a List of municipal districts in Alberta, municipal district (MD) in Northern Alberta, northwest Alberta, Canada, north of Grande Prairie. Located in the Upper Peace Region, its List of municip ...

is a

municipal district A municipal district is an administrative entity comprising a clearly-defined territory and its population. It can refer to a city, a town, a village, a small grouping of them, or a rural area. Brazil In Brazil, municipal districts are, in genera ...

in northwest

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

, Canada, north of

Grande Prairie Grande Prairie is a city in northwest Alberta, Canada within the southern portion of an area known as Peace River Country. It is located at the intersection of Highway 43 (part of the CANAMEX Corridor) and Highway 40 (the Bighorn Highway), a ...

* In

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

, the phone number for the police.

References

{{DEFAULTSORT:133 (Number) Integers

In mathematics

In the military

In transportation

In other fields

See also

References