110 (one hundred
ndten) is the
natural number
In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following
109 and preceding
111.
In mathematics
110 is a
sphenic number
In number theory, a sphenic number (from , 'wedge') is a positive integer that is the product of three distinct prime numbers. Because there are infinitely many prime numbers, there are also infinitely many sphenic numbers.
Definition
A sphenic ...
and a
pronic number. Following the
prime quadruplet (101, 103, 107, 109), at 110, the
Mertens function reaches a low of −5.
110 is the sum of three consecutive
square
In geometry, a square is a regular polygon, regular quadrilateral. It has four straight sides of equal length and four equal angles. Squares are special cases of rectangles, which have four equal angles, and of rhombuses, which have four equal si ...
s,
.
RSA-110 is one of the
RSA numbers, large semiprimes that are part of the
RSA Factoring Challenge.
In base 10, the number 110 is a
Harshad number
In mathematics, a harshad number (or Niven number) in a given radix, number base is an integer that is divisible by the digit sum, sum of its digits when written in that base. Harshad numbers in base are also known as -harshad (or -Niven) numbers ...
and a
self number.
In other fields
110 is also:
*
1-1-0, the
emergency telephone number
An emergency telephone number is a number that allows a caller to contact local emergency services for assistance. The emergency number differs from country to country; it is typically a three-digit number so that it can be easily remembered and ...
used to reach
police services in Iran, Germany, Estonia, China, Indonesia, and Japan. Also used to reach the fire and rescue services in Norway and Turkey.
* A percentage in the expression "To give 110%", meaning to give a little more effort than one's maximum effort
* Lowest number to not be considered a favourite by anyone among 44,000 people surveyed in a 2014 online poll and subsequently adopted by British television show ''
QI'' as the show's favourite number in 2017.
Eleventy
;Compare ''
twelfty''.
As 110
* One hundred and ten is also known as "eleventy", a term made famous in its
ordinal form by linguist and author
J. R. R. Tolkien
John Ronald Reuel Tolkien (, 3 January 1892 – 2 September 1973) was an English writer and philologist. He was the author of the high fantasy works ''The Hobbit'' and ''The Lord of the Rings''.
From 1925 to 1945, Tolkien was the Rawlinson ...
(
Bilbo Baggins
Bilbo Baggins (Westron: ''Bilba Labingi'') is the title character and protagonist of J. R. R. Tolkien's 1937 novel ''The Hobbit'', a supporting character in ''The Lord of the Rings'', and the fictional narrator (along with Frodo Baggins) of m ...
celebrates his eleventy-first birthday at the beginning of
The Lord of the Rings
''The Lord of the Rings'' is an Epic (genre), epic high fantasy novel written by English author and scholar J. R. R. Tolkien. Set in Middle-earth, the story began as a sequel to Tolkien's 1937 children's book ''The Hobbit'' but eventually d ...
) and derived from the
Old English
Old English ( or , or ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages. It developed from the languages brought to Great Britain by Anglo-S ...
''.''
* Eleventy is used in the comic reading of a phone number in the Irish TV series ''
The Savage Eye'' by
Dave McSavage playing an opiate user advertising life insurance.
Other meanings of ''eleventy''
* Eleventy has also been used to mean an indefinite large number - "lots". Similarly ''eleventy-eleven'' was used in nineteenth century Mississippi in the same role.
References
{{DEFAULTSORT:110 (Number)
Integers