83 (eighty-three) 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
82 and preceding
84.
In mathematics
83 is:
* the sum of three consecutive primes (23 + 29 + 31).
* the sum of five consecutive primes (11 + 13 + 17 + 19 + 23).
* the 23rd
prime number
A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), 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 ...
, following
79 (of which it is also a
cousin prime) and preceding
89.
* a
Sophie Germain prime.
* a
safe prime.
* a
Chen prime.
* an
Eisenstein prime with no imaginary part and real part of the form 3''n'' − 1.
* a
highly cototient number.
* the number of
primes that are
right-truncatable.
* a
super-prime, because 23 is prime.
In other fields
* The eighth letter of the alphabet is H and the third letter is C, thus 83 stands for "Heil Christ," a greeting used by organizations that consider themselves also to be Christian.
* An
emoticon
An emoticon (, , rarely , ), short for emotion icon, is a pictorial representation of a facial expression using Character (symbol), characters—usually punctuation marks, numbers and Alphabet, letters—to express a person's feelings, mood ...
based on :3 with wide-open eyes.
References
Integers
{{Num-stub