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12945504 = 25311132341
BaseRepresentation
bin110001011000…
…100001100000
3220100200220010
4301120201200
511303224004
61141244520
7215014665
oct61304140
926320803
1012945504
117342170
124403740
1328b3480
141a0da6c
15120aa89
hexc58860

12945504 has 192 divisors, whose sum is σ = 42674688. Its totient is φ = 3379200.

The previous prime is 12945469. The next prime is 12945511. The reversal of 12945504 is 40554921.

12945504 = T352 + T353 + ... + T494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315724 + ... + 315764.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

Almost surely, 212945504 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 12945504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21337344).

12945504 is an abundant number, since it is smaller than the sum of its proper divisors (29729184).

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

12945504 is a wasteful number, since it uses less digits than its factorization.

12945504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 12945504 is about 3597.9861033639. The cubic root of 12945504 is about 234.8044487586.

The spelling of 12945504 in words is "twelve million, nine hundred forty-five thousand, five hundred four".