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13212982 = 231321107
BaseRepresentation
bin110010011001…
…110100110110
3220212021210201
4302121310312
511340303412
61151111114
7220210546
oct62316466
926767721
1013212982
117505122
12451249a
132978143
141a7d326
15125ee57
hexc99d36

13212982 has 8 divisors (see below), whose sum is σ = 19883736. Its totient is φ = 6585072.

The previous prime is 13212967. The next prime is 13213001. The reversal of 13212982 is 28921231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13212982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9928 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (2485467).

Almost surely, 213212982 is an apocalyptic number.

13212982 is a deficient number, since it is larger than the sum of its proper divisors (6670754).

13212982 is a wasteful number, since it uses less digits than its factorization.

13212982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21422.

The product of its digits is 1728, while the sum is 28.

The square root of 13212982 is about 3634.9665748119. The cubic root of 13212982 is about 236.4106013991.

The spelling of 13212982 in words is "thirteen million, two hundred twelve thousand, nine hundred eighty-two".

Divisors: 1 2 313 626 21107 42214 6606491 13212982