82 (number)

82 (eighty-two) is the natural number following 81 and preceding 83.

In mathematics

82 is:

• the twenty-third semiprime and the twelfth of the form (2×q).
• a companion Pell number.^[1]
• a happy number.^[2]
• palindromic in bases 3 (10001₃), 9 (101₉) and 40 (22₄₀).

In astronomy

• 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 atomic number of lead.
• In physics, the sixth Magic Number.
• 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.
• 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.

References