# 83 (number)

 ← 82 83 84 →
Cardinal eighty-three
Ordinal 83rd
(eighty-third)
Factorization prime
Prime 23rd
Divisors 1, 83
Roman numeral LXXXIII
Binary 10100112
Ternary 100023
Quaternary 11034
Quinary 3135
Senary 2156
Octal 1238
Duodecimal 6B12
Vigesimal 4320
Base 36 2B36

83 (eighty-three) is the natural number following 82 and preceding 84.

## In mathematics

83 is the sum of three consecutive primes (23 + 29 + 31) as well as the sum of five consecutive primes (11 + 13 + 17 + 19 + 23).

83 is the 23rd prime number, following 79 and preceding 89. 83 is a Sophie Germain prime and a safe prime, and also a Chen prime. It is an Eisenstein prime with no imaginary part and real part of the form $3n - 1$.

83 is a highly cototient number.

## In music

• M83 is the debut album of the French electronic music group M83
• 83 is a song written by John Mayer in the Room for Squares album.
• 83 is a Quebec hip-hop group

## In other fields

Eighty-three is also: