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12945384 = 2332199463
BaseRepresentation
bin110001011000…
…011111101000
3220100200201200
4301120133220
511303223014
61141244200
7215014434
oct61303750
926320650
1012945384
117342071
124403660
1328b33ba
141a0d9c4
15120aa09
hexc587e8

12945384 has 48 divisors (see below), whose sum is σ = 36909600. Its totient is φ = 4087584.

The previous prime is 12945377. The next prime is 12945391. The reversal of 12945384 is 48354921.

12945384 is a `hidden beast` number, since 129 + 453 + 84 = 666.

12945384 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12945377) and next prime (12945391).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3364 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (768950).

Almost surely, 212945384 is an apocalyptic number.

It is an amenable number.

12945384 is an abundant number, since it is smaller than the sum of its proper divisors (23964216).

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

12945384 is a wasteful number, since it uses less digits than its factorization.

12945384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9494 (or 9487 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 12945384 is about 3597.9694273298. The cubic root of 12945384 is about 234.8037232397.

The spelling of 12945384 in words is "twelve million, nine hundred forty-five thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 9463 18926 28389 37852 56778 75704 85167 113556 170334 179797 227112 340668 359594 539391 681336 719188 1078782 1438376 1618173 2157564 3236346 4315128 6472692 12945384