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12930756 = 2231077563
BaseRepresentation
bin110001010100…
…111011000100
3220022221122220
4301110323010
511302241011
61141052340
7214623666
oct61247304
926287586
1012930756
117332083
1243b70b0
1328a9847
141a08536
151206506
hexc54ec4

12930756 has 12 divisors (see below), whose sum is σ = 30171792. Its totient is φ = 4310248.

The previous prime is 12930739. The next prime is 12930787. The reversal of 12930756 is 65703921.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 538770 + ... + 538793.

It is an arithmetic number, because the mean of its divisors is an integer number (2514316).

Almost surely, 212930756 is an apocalyptic number.

It is an amenable number.

12930756 is an abundant number, since it is smaller than the sum of its proper divisors (17241036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12930756 is a wasteful number, since it uses less digits than its factorization.

12930756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077570 (or 1077568 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 12930756 is about 3595.9360394757. The cubic root of 12930756 is about 234.7152488875.

The spelling of 12930756 in words is "twelve million, nine hundred thirty thousand, seven hundred fifty-six".

Divisors: 1 2 3 4 6 12 1077563 2155126 3232689 4310252 6465378 12930756