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57904228 = 2223362129
BaseRepresentation
bin1101110011100…
…0110001100100
311000221211200001
43130320301210
5104310413403
65425031044
71302114664
oct334706144
9130854601
1057904228
112a75a338
1217485484
13bcc5075
1479941a4
15513bc1d
hex3738c64

57904228 has 12 divisors (see below), whose sum is σ = 101768940. Its totient is φ = 28827392.

The previous prime is 57904211. The next prime is 57904241. The reversal of 57904228 is 82240975.

57904228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36578304 + 21325924 = 6048^2 + 4618^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30133 + ... + 31996.

It is an arithmetic number, because the mean of its divisors is an integer number (8480745).

Almost surely, 257904228 is an apocalyptic number.

It is an amenable number.

57904228 is a deficient number, since it is larger than the sum of its proper divisors (43864712).

57904228 is a wasteful number, since it uses less digits than its factorization.

57904228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62366 (or 62364 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 57904228 is about 7609.4827682307. The cubic root of 57904228 is about 386.8744882954.

The spelling of 57904228 in words is "fifty-seven million, nine hundred four thousand, two hundred twenty-eight".

Divisors: 1 2 4 233 466 932 62129 124258 248516 14476057 28952114 57904228