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57304480 = 255358153
BaseRepresentation
bin1101101010011…
…0010110100000
310222211100222011
43122212112200
5104132220410
65404122304
71264036312
oct332462640
9128740864
1057304480
112a38a782
1217236394
13bb4509c
1478797b2
15506e18a
hex36a65a0

57304480 has 24 divisors (see below), whose sum is σ = 135382212. Its totient is φ = 22921728.

The previous prime is 57304469. The next prime is 57304487. The reversal of 57304480 is 8440375.

It can be written as a sum of positive squares in 2 ways, for example, as 50523664 + 6780816 = 7108^2 + 2604^2 .

It is not an unprimeable number, because it can be changed into a prime (57304487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178917 + ... + 179236.

Almost surely, 257304480 is an apocalyptic number.

It is an amenable number.

57304480 is an abundant number, since it is smaller than the sum of its proper divisors (78077732).

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

57304480 is a wasteful number, since it uses less digits than its factorization.

57304480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358168 (or 358160 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 57304480 is about 7569.9722588659. The cubic root of 57304480 is about 385.5341548353.

The spelling of 57304480 in words is "fifty-seven million, three hundred four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 358153 716306 1432612 1790765 2865224 3581530 5730448 7163060 11460896 14326120 28652240 57304480