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51295488 = 28366791
BaseRepresentation
bin1100001110101…
…1010100000000
310120112002011220
43003223110000
5101112423423
65031235040
71162001346
oct303532400
9116462156
1051295488
1126a56072
1215218a80
13a81cc7a
146b53996
1547839e3
hex30eb500

51295488 has 36 divisors (see below), whose sum is σ = 136522848. Its totient is φ = 17098240.

The previous prime is 51295457. The next prime is 51295499. The reversal of 51295488 is 88459215.

It is a happy number.

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, 32628 + ... + 34163.

Almost surely, 251295488 is an apocalyptic number.

It is an amenable number.

51295488 is an abundant number, since it is smaller than the sum of its proper divisors (85227360).

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

51295488 is an equidigital number, since it uses as much as digits as its factorization.

51295488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66810 (or 66796 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 51295488 is about 7162.0868467228. The cubic root of 51295488 is about 371.5578050156.

The spelling of 51295488 in words is "fifty-one million, two hundred ninety-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 66791 133582 200373 267164 400746 534328 801492 1068656 1602984 2137312 3205968 4274624 6411936 8549248 12823872 17098496 25647744 51295488