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12957475 = 52518299
BaseRepresentation
bin110001011011…
…011100100011
3220101022022111
4301123130203
511304114400
61141420151
7215064616
oct61333443
926338274
1012957475
117350163
12440a657
1328b8a5b
141a1417d
15120e3ba
hexc5b723

12957475 has 6 divisors (see below), whose sum is σ = 16067300. Its totient is φ = 10365960.

The previous prime is 12957467. The next prime is 12957481. The reversal of 12957475 is 57475921.

It is not a de Polignac number, because 12957475 - 23 = 12957467 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 259125 + ... + 259174.

Almost surely, 212957475 is an apocalyptic number.

12957475 is a deficient number, since it is larger than the sum of its proper divisors (3109825).

12957475 is an equidigital number, since it uses as much as digits as its factorization.

12957475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518309 (or 518304 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 12957475 is about 3599.6492884724. The cubic root of 12957475 is about 234.8768027867.

The spelling of 12957475 in words is "twelve million, nine hundred fifty-seven thousand, four hundred seventy-five".

Divisors: 1 5 25 518299 2591495 12957475