82 (number)

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← 81 82 83 →
Cardinal eighty-two
Ordinal 82nd
(eighty-second)
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[edit]

82 is:

  • the twenty-third biprime 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[edit]

In other fields[edit]

Eighty-two is also:

In sports[edit]

  • 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[edit]

  1. ^ "Sloane's A002203 : Companion Pell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  2. ^ "Sloane's A007770 : Happy numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.