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57708051 = 3117116427
BaseRepresentation
bin1101110000100…
…0111000010011
311000120212120020
43130020320103
5104233124201
65420514523
71300340022
oct334107023
9130525506
1057708051
112a635a05
12173aba43
13bc5699b
1479428b9
1550eda36
hex3708e13

57708051 has 8 divisors (see below), whose sum is σ = 77014464. Its totient is φ = 38436840.

The previous prime is 57708041. The next prime is 57708059. The reversal of 57708051 is 15080775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57708051 - 29 = 57707539 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57708059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701 + ... + 11726.

It is an arithmetic number, because the mean of its divisors is an integer number (9626808).

Almost surely, 257708051 is an apocalyptic number.

57708051 is the 4805-th centered pentagonal number.

57708051 is a deficient number, since it is larger than the sum of its proper divisors (19306413).

57708051 is a wasteful number, since it uses less digits than its factorization.

57708051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17601.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 57708051 is about 7596.5815338216. The cubic root of 57708051 is about 386.4370893267.

The spelling of 57708051 in words is "fifty-seven million, seven hundred eight thousand, fifty-one".

Divisors: 1 3 1171 3513 16427 49281 19236017 57708051