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12830656 = 26433463
BaseRepresentation
bin110000111100…
…011111000000
3220010212100111
4300330133000
511241040111
61135001104
7214026106
oct60743700
926125314
1012830656
117273953
124369194
132873107
1419bdc76
1511d6a21
hexc3c7c0

12830656 has 28 divisors (see below), whose sum is σ = 25574752. Its totient is φ = 6386688.

The previous prime is 12830651. The next prime is 12830659. The reversal of 12830656 is 65603821.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12830651) by changing a digit.

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, 27481 + ... + 27943.

It is an arithmetic number, because the mean of its divisors is an integer number (913384).

Almost surely, 212830656 is an apocalyptic number.

12830656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12830656 is a deficient number, since it is larger than the sum of its proper divisors (12744096).

12830656 is an equidigital number, since it uses as much as digits as its factorization.

12830656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12830656 is about 3581.9905080835. The cubic root of 12830656 is about 234.1080174347.

The spelling of 12830656 in words is "twelve million, eight hundred thirty thousand, six hundred fifty-six".

Divisors: 1 2 4 8 16 32 64 433 463 866 926 1732 1852 3464 3704 6928 7408 13856 14816 27712 29632 200479 400958 801916 1603832 3207664 6415328 12830656