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57313155 = 3513129167
BaseRepresentation
bin1101101010100…
…0011110000011
310222211210212110
43122220132003
5104133010110
65404230403
71264103514
oct332503603
9128753773
1057313155
112a396249
121723b403
13bb49013
14787ca0b
155071a20
hex36a8783

57313155 has 16 divisors (see below), whose sum is σ = 92404224. Its totient is φ = 30332640.

The previous prime is 57313153. The next prime is 57313169. The reversal of 57313155 is 55131375.

57313155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57313155 - 21 = 57313153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57313153) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12619 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (5775264).

Almost surely, 257313155 is an apocalyptic number.

57313155 is a deficient number, since it is larger than the sum of its proper divisors (35091069).

57313155 is a wasteful number, since it uses less digits than its factorization.

57313155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29306.

The product of its digits is 7875, while the sum is 30.

The square root of 57313155 is about 7570.5452247510. The cubic root of 57313155 is about 385.5536084629.

The spelling of 57313155 in words is "fifty-seven million, three hundred thirteen thousand, one hundred fifty-five".

Divisors: 1 3 5 15 131 393 655 1965 29167 87501 145835 437505 3820877 11462631 19104385 57313155