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82 (number)

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Title: 82 (number)  
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Subject: 83 (number), 81 (number), 80 (number), 84 (number), 86 (number)
Collection: Integers
Publisher: World Heritage Encyclopedia

82 (number)

81 82 83
Cardinal eighty-two
Ordinal 82nd
Factorization 2 × 41
Divisors 1, 2, 41, 82
Roman numeral LXXXII
Binary 10100102
Ternary 100013
Quaternary 11024
Quinary 3125
Senary 2146
Octal 1228
Duodecimal 6A12
Hexadecimal 5216
Vigesimal 4220
Base 36 2A36

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


  • In mathematics 1
  • In astronomy 2
  • In other fields 3
  • In sports 4

In mathematics

82 is the twenty-third biprime and the twelfth of the form (2.q). The aliquot sum of 82 is 44 within the aliquot sequence (82,44,40,50,43,1,0)) 82 being the eighth composite number in the 43-aliquot tree.

82 is a companion Pell number.

82 is a happy number

In astronomy

In other fields

Eighty-two is also:

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.
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