82 is the natural number following 81 and preceding 83.

Cardinal	eighty-two
Ordinal	82nd (eighty-second)
Factorization
Roman numeral	LXXXII
Binary	01010010
Hexadecimal	52

In mathematics

Eighty-two is a companion Pell number.

In astronomy

• Messier object M82, a magnitude 9.5 irregular galaxy in the constellation Ursa Major
• The New General Catalogue object NGC 82 , a single star in the constellation Andromeda
• The Saros number of the solar eclipse series which began on -293 April 22 and ended on 969 May 19. The duration of Saros series 82 was 1262.1 years, and it contained 71 solar eclipses. The Saros number of the lunar eclipse series which began on -226 September 10 and ended on 1289 March 8. The duration of Saros series 82 was 1514.5 years, and it contained 85 lunar eclipses.

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
  

  

  Mark 82 bomb
• the code for international direct dial phone calls to South Korea
• The ISBN Group Identifier for books published in Norway
• The year AD 82, 82 BC, or 1982.