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12956607 = 3213910357
BaseRepresentation
bin110001011011…
…001110111111
3220101021010100
4301123032333
511304102412
61141412143
7215062236
oct61331677
926337110
1012956607
11734a544
12440a053
1328b8541
141a13b1d
15120dedc
hexc5b3bf

12956607 has 12 divisors (see below), whose sum is σ = 18851560. Its totient is φ = 8574768.

The previous prime is 12956597. The next prime is 12956611. The reversal of 12956607 is 70665921.

It is not a de Polignac number, because 12956607 - 28 = 12956351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3928 + ... + 6429.

Almost surely, 212956607 is an apocalyptic number.

12956607 is a deficient number, since it is larger than the sum of its proper divisors (5894953).

12956607 is a wasteful number, since it uses less digits than its factorization.

12956607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502 (or 10499 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 12956607 is about 3599.5287191520. The cubic root of 12956607 is about 234.8715579990.

The spelling of 12956607 in words is "twelve million, nine hundred fifty-six thousand, six hundred seven".

Divisors: 1 3 9 139 417 1251 10357 31071 93213 1439623 4318869 12956607