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13927982 = 256912239
BaseRepresentation
bin110101001000…
…011000101110
3222012121121012
4311020120232
512031143412
61214305222
7226246235
oct65103056
928177535
1013927982
117953332
1247b8212
132b68713
141bc7b1c
151351c22
hexd4862e

13927982 has 8 divisors (see below), whose sum is σ = 20930400. Its totient is φ = 6951184.

The previous prime is 13927961. The next prime is 13927993. The reversal of 13927982 is 28972931.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4982 + ... + 7257.

It is an arithmetic number, because the mean of its divisors is an integer number (2616300).

Almost surely, 213927982 is an apocalyptic number.

13927982 is a deficient number, since it is larger than the sum of its proper divisors (7002418).

13927982 is a wasteful number, since it uses less digits than its factorization.

13927982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12810.

The product of its digits is 54432, while the sum is 41.

The square root of 13927982 is about 3732.0211682143. The cubic root of 13927982 is about 240.6002452074.

The spelling of 13927982 in words is "thirteen million, nine hundred twenty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 569 1138 12239 24478 6963991 13927982