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57690632 = 237211329
BaseRepresentation
bin1101110000010…
…0101000001000
311000112222200002
43130010220020
5104232100012
65420302132
71300235156
oct334045010
9130488602
1057690632
112a62390a
12173a1948
13bc4ba8c
14793a3d6
1550e87c2
hex3704a08

57690632 has 8 divisors (see below), whose sum is σ = 108169950. Its totient is φ = 28845312.

The previous prime is 57690629. The next prime is 57690637. The reversal of 57690632 is 23609675.

It can be written as a sum of positive squares in only one way, i.e., 50324836 + 7365796 = 7094^2 + 2714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (57690637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605657 + ... + 3605672.

Almost surely, 257690632 is an apocalyptic number.

It is an amenable number.

57690632 is a deficient number, since it is larger than the sum of its proper divisors (50479318).

57690632 is a wasteful number, since it uses less digits than its factorization.

57690632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211335 (or 7211331 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 57690632 is about 7595.4349447546. The cubic root of 57690632 is about 386.3982037932.

The spelling of 57690632 in words is "fifty-seven million, six hundred ninety thousand, six hundred thirty-two".

Divisors: 1 2 4 8 7211329 14422658 28845316 57690632