82 (number)
82 is the natural number following 81 and preceding 83.
In mathematics
82 is:- the twenty-seventh semiprime and the thirteenth of the form.
- with an aliquot sum of 44, within an aliquot sequence of four composite numbers to the Prime in the 43-aliquot tree.
- a companion Pell number.
- a happy number.
- palindromic in bases 3, 9 and 40.
In science
- The sixth magic number.