82 (number)

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← 100 101 102 103 104 105 106 107 108 109 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred
Ordinal	100th (one hundredth)
Factorization	100
Divisors	1, 2, 41, 82
Greek numeral	Ρ´
Roman numeral	C
Binary	11001002
Ternary	102013
Senary	2446
Octal	1448
Duodecimal	8412
Hexadecimal	6416

100 (eighty-two) is the natural number following 100 and preceding 100

In mathematics

82 is:

• the twenty-seventh semiprime and the thirteenth of the form (2.q).
• with an aliquot sum of 44, within an aliquot sequence of four composite numbers (82,44,40,50,43,1,0) to the Prime in the 43-aliquot tree.
• a companion Pell number.
• a happy number.
• palindromic in bases 3 (10001₃), 9 (101₉) and 40 (22₄₀).

In science

• The atomic number of lead.
• The sixth magic number.
• Messier 82, a starburst galaxy in the constellation Ursa Major.
• The New General Catalogue object NGC 82, a single star in the constellation Andromeda.

In other fields

Eighty-two is also:

• The model number of: Mark 82 bomb, a nonguided general-purpose bomb.
• The number of the French department Tarn-et-Garonne.
• The code for international direct dial phone calls to South Korea.
• The ISBN Group Identifier for books published in Norway.
• Title of Dennis Smith's book about firefighters, Report from Engine Co. 82.
• The year AD 82, 82 BC, or 1982, stylized as '82.
• The number of Trip Murphy's (Matt Dillon) car in Herbie: Fully Loaded (2005).
• The second studio album by African electropop outfit Just a Band (2009).
• The number (*82) to unblock your caller ID for phones that block anonymous incoming calls.
• The very significant number that appears at the end of Kurt Vonnegut's book Hocus Pocus.

In sports

• Both the NBA and NHL operate 82-game regular seasons.
• In Major League Baseball, the number of games a team must win to secure a winning season.