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57613901 = 173389053
BaseRepresentation
bin1101101111000…
…1111001001101
311000102002102012
43123301321031
5104222121101
65414511005
71266465362
oct333617115
9130362365
1057613901
112a5811a4
1217365465
13bc22b87
14791a469
1550d0bbb
hex36f1e4d

57613901 has 4 divisors (see below), whose sum is σ = 61002972. Its totient is φ = 54224832.

The previous prime is 57613879. The next prime is 57613943. The reversal of 57613901 is 10931675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30261001 + 27352900 = 5501^2 + 5230^2 .

It is not a de Polignac number, because 57613901 - 26 = 57613837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57613961) 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, 1694510 + ... + 1694543.

It is an arithmetic number, because the mean of its divisors is an integer number (15250743).

Almost surely, 257613901 is an apocalyptic number.

It is an amenable number.

57613901 is a deficient number, since it is larger than the sum of its proper divisors (3389071).

57613901 is a wasteful number, since it uses less digits than its factorization.

57613901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389070.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 57613901 is about 7590.3821379427. The cubic root of 57613901 is about 386.2268190932.

The spelling of 57613901 in words is "fifty-seven million, six hundred thirteen thousand, nine hundred one".

Divisors: 1 17 3389053 57613901