82 (number)

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← 81 82 83 →
Cardinaleighty-two
Ordinal82nd
(eighty-second)
Factorization2 × 41
Divisors1, 2, 41, 82
Greek numeralΠΒ´
Roman numeralLXXXII
Binary10100102
Ternary100013
Quaternary11024
Quinary3125
Senary2146
Octal1228
Duodecimal6A12
Hexadecimal5216
Vigesimal4220
Base 362A36

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.