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12925180 = 225646259
BaseRepresentation
bin110001010011…
…100011111100
3220022200000101
4301103203330
511302101210
61141010444
7214601512
oct61234374
926280011
1012925180
117328974
1243b3a24
1328a7148
141a064b2
151204a3a
hexc538fc

12925180 has 12 divisors (see below), whose sum is σ = 27142920. Its totient is φ = 5170064.

The previous prime is 12925169. The next prime is 12925201. The reversal of 12925180 is 8152921.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 323110 + ... + 323149.

It is an arithmetic number, because the mean of its divisors is an integer number (2261910).

Almost surely, 212925180 is an apocalyptic number.

12925180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12925180 is an abundant number, since it is smaller than the sum of its proper divisors (14217740).

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

12925180 is a wasteful number, since it uses less digits than its factorization.

12925180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646268 (or 646266 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 12925180 is about 3595.1606361886. The cubic root of 12925180 is about 234.6815060706.

The spelling of 12925180 in words is "twelve million, nine hundred twenty-five thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 646259 1292518 2585036 3231295 6462590 12925180