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57903904 = 2517106441
BaseRepresentation
bin1101110011100…
…0101100100000
311000221211020001
43130320230200
5104310411104
65425025344
71302114022
oct334705440
9130854201
1057903904
112a75a073
1217485254
13bcc4b86
147994012
15513baa4
hex3738b20

57903904 has 24 divisors (see below), whose sum is σ = 120705228. Its totient is φ = 27248640.

The previous prime is 57903893. The next prime is 57903907. The reversal of 57903904 is 40930975.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 2371600 = 7452^2 + 1540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57903907) 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, 52677 + ... + 53764.

Almost surely, 257903904 is an apocalyptic number.

It is an amenable number.

57903904 is an abundant number, since it is smaller than the sum of its proper divisors (62801324).

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

57903904 is a wasteful number, since it uses less digits than its factorization.

57903904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106468 (or 106460 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 57903904 is about 7609.4614789747. The cubic root of 57903904 is about 386.8737667155.

The spelling of 57903904 in words is "fifty-seven million, nine hundred three thousand, nine hundred four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 106441 212882 425764 851528 1703056 1809497 3406112 3618994 7237988 14475976 28951952 57903904