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12956470 = 251295647
BaseRepresentation
bin110001011011…
…001100110110
3220101020221021
4301123030312
511304101340
61141411354
7215061652
oct61331466
926336837
1012956470
11734a42a
124409b5a
1328b8467
141a13a62
15120de4a
hexc5b336

12956470 has 8 divisors (see below), whose sum is σ = 23321664. Its totient is φ = 5182584.

The previous prime is 12956453. The next prime is 12956477. The reversal of 12956470 is 7465921.

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

It is a super-2 number, since 2×129564702 = 335740229721800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956477) 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, 647814 + ... + 647833.

It is an arithmetic number, because the mean of its divisors is an integer number (2915208).

Almost surely, 212956470 is an apocalyptic number.

12956470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12956470 is a deficient number, since it is larger than the sum of its proper divisors (10365194).

12956470 is a wasteful number, since it uses less digits than its factorization.

12956470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295654.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12956470 is about 3599.5096888326. The cubic root of 12956470 is about 234.8707301713.

The spelling of 12956470 in words is "twelve million, nine hundred fifty-six thousand, four hundred seventy".

Divisors: 1 2 5 10 1295647 2591294 6478235 12956470