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57383855 = 537313991
BaseRepresentation
bin1101101011100…
…1101110101111
310222222101211222
43122321232233
5104142240410
65405533555
71264516604
oct332715657
9128871758
1057383855
112a434381
12172742bb
13bb72259
14789a6ab
155087955
hex36b9baf

57383855 has 16 divisors (see below), whose sum is σ = 71019264. Its totient is φ = 44478720.

The previous prime is 57383797. The next prime is 57383861. The reversal of 57383855 is 55838375.

It is not a de Polignac number, because 57383855 - 26 = 57383791 is a prime.

It is a super-2 number, since 2×573838552 = 6585813629322050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57410 + ... + 58400.

It is an arithmetic number, because the mean of its divisors is an integer number (4438704).

Almost surely, 257383855 is an apocalyptic number.

57383855 is a deficient number, since it is larger than the sum of its proper divisors (13635409).

57383855 is a wasteful number, since it uses less digits than its factorization.

57383855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its digits is 504000, while the sum is 44.

The square root of 57383855 is about 7575.2131983199. The cubic root of 57383855 is about 385.7120795811.

The spelling of 57383855 in words is "fifty-seven million, three hundred eighty-three thousand, eight hundred fifty-five".

Divisors: 1 5 37 185 313 991 1565 4955 11581 36667 57905 183335 310183 1550915 11476771 57383855