119 (one hundred
ndnineteen) 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
118 and preceding
120.
Mathematics
* 119 is a
Perrin number
In mathematics, the Perrin numbers are a doubly infinite constant-recursive sequence, constant-recursive integer sequence with Characteristic equation (calculus), characteristic equation . The Perrin numbers, named after the French engineer , bear ...
, preceded in the sequence by 51, 68, 90 (it is the sum of the first two mentioned).
* 119 is the sum of five consecutive
primes (17 + 19 + 23 + 29 + 31).
* 119 is the sum of seven consecutive
primes (7 + 11 + 13 + 17 + 19 + 23 + 29).
* 119 is a
highly cototient number.
* 119 is one of five numbers to hold a
sum-of-divisors of
144 =
122 (the others are
66,
70,
94, and
115).
* 119 is the
order
Order, ORDER or Orders may refer to:
* A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
...
of the largest
cyclic subgroups of the
monster group
In the area of abstract algebra known as group theory, the monster group M (also known as the Fischer–Griess monster, or the friendly giant) is the largest sporadic simple group; it has order
:
: = 2463205976112133171923293 ...
.
* 119 is the smallest
composite number
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime numb ...
that is 1 less than a
factorial
In mathematics, the factorial of a non-negative denoted is the Product (mathematics), product of all positive integers less than or equal The factorial also equals the product of n with the next smaller factorial:
\begin
n! &= n \times ...
(120 is 5!).
* 119 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 n ...
, and the fourth in the family.
Telephony
*
119 is an emergency telephone number in some countries
* A number to report youth at risk in France
Descriptive website
/ref>
* 119 is the emergency number in Afghanistan that belongs to police and interior ministry.
* The South Korean emergency call number
* The Chinese fire station call number
* 119 is the number for the UK's NHS Test and Trace service (created in response to the COVID-19 pandemic)
References
Integers
{{Num-stub