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12945204 = 2233671789
BaseRepresentation
bin110001011000…
…011100110100
3220100200111000
4301120130310
511303221304
61141243300
7215014056
oct61303464
926320430
1012945204
117341a18
124403530
1328b32ac
141a0d8d6
15120a939
hexc58734

12945204 has 48 divisors (see below), whose sum is σ = 34081600. Its totient is φ = 4248288.

The previous prime is 12945203. The next prime is 12945221. The reversal of 12945204 is 40254921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945203) 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 15 ways as a sum of consecutive naturals, for example, 6342 + ... + 8130.

Almost surely, 212945204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12945204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17040800).

12945204 is an abundant number, since it is smaller than the sum of its proper divisors (21136396).

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

12945204 is a wasteful number, since it uses less digits than its factorization.

12945204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12945204 is about 3597.9444131337. The cubic root of 12945204 is about 234.8026349531.

The spelling of 12945204 in words is "twelve million, nine hundred forty-five thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 67 108 134 201 268 402 603 804 1206 1789 1809 2412 3578 3618 5367 7156 7236 10734 16101 21468 32202 48303 64404 96606 119863 193212 239726 359589 479452 719178 1078767 1438356 2157534 3236301 4315068 6472602 12945204