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12957292 = 2211872729
BaseRepresentation
bin110001011011…
…011001101100
3220101022001201
4301123121230
511304113132
61141415244
7215064235
oct61333154
926338051
1012957292
117350007
12440a524
1328b894a
141a1408c
15120e2e7
hexc5b66c

12957292 has 12 divisors (see below), whose sum is σ = 22702680. Its totient is φ = 6470816.

The previous prime is 12957253. The next prime is 12957293. The reversal of 12957292 is 29275921.

It is not an unprimeable number, because it can be changed into a prime (12957293) by changing a digit.

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, 3384 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 212957292 is an apocalyptic number.

It is an amenable number.

12957292 is a deficient number, since it is larger than the sum of its proper divisors (9745388).

12957292 is a wasteful number, since it uses less digits than its factorization.

12957292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3918 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 12957292 is about 3599.6238692397. The cubic root of 12957292 is about 234.8756970503.

The spelling of 12957292 in words is "twelve million, nine hundred fifty-seven thousand, two hundred ninety-two".

Divisors: 1 2 4 1187 2374 2729 4748 5458 10916 3239323 6478646 12957292