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64392152 = 2311731729
BaseRepresentation
bin1111010110100…
…0101111011000
311111011110102112
43311220233120
5112441022102
610220051452
71411216136
oct365505730
9144143375
1064392152
1133390860
1219693b88
1310457186
1487a2756
1559be252
hex3d68bd8

64392152 has 16 divisors (see below), whose sum is σ = 131711400. Its totient is φ = 29269120.

The previous prime is 64392143. The next prime is 64392193. The reversal of 64392152 is 25129346.

It is a happy number.

It is a super-2 number, since 2×643921522 = 8292698478382208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365777 + ... + 365952.

Almost surely, 264392152 is an apocalyptic number.

It is an amenable number.

64392152 is an abundant number, since it is smaller than the sum of its proper divisors (67319248).

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

64392152 is a wasteful number, since it uses less digits than its factorization.

64392152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731746 (or 731742 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 64392152 is about 8024.4720698623. The cubic root of 64392152 is about 400.8153203361.

The spelling of 64392152 in words is "sixty-four million, three hundred ninety-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 731729 1463458 2926916 5853832 8049019 16098038 32196076 64392152