The 83 (number) reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

83 (number)

83 is the natural number following 82 and preceding 84.

List of numbers — Integers << 80 81 82 83 84 85 86 87 88 89 >>
Cardinal	eighty-three
Ordinal	83rd (eighty-third)
Factorization
Roman numeral	LXXXIII
Binary	01010011
Hexadecimal	53

In mathematics

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

It is also the 23rd prime number, following seventy-nine and preceding eighty-nine, and a Sophie Germain prime.

In other fields

Eighty-three is also:

• the atomic number of bismuth (Bi)
• the hours in 83 Hours 'Til Dawn
• the model number of Bell XP-83
• the Messier number of M83, the Southern Pinwheel Galaxy
• the number of the French department Var
• the designation of Interstate 83, a freeway that runs from Maryland to Pennsylvania; European route E83 from Bjala to Sofia
• The year AD 83, 83 BC, or 1983.

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