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57349905 = 3511873221
BaseRepresentation
bin1101101011000…
…1011100010001
310222220200021120
43122301130101
5104140144110
65405112453
71264315614
oct332613421
9128820246
1057349905
112a410918
1217258729
13bb5c972
14788c17b
15507c870
hex36b1711

57349905 has 16 divisors (see below), whose sum is σ = 91865664. Its totient is φ = 30551360.

The previous prime is 57349861. The next prime is 57349927. The reversal of 57349905 is 50994375.

57349905 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 57349905 - 26 = 57349841 is a prime.

It is an unprimeable number.

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, 16195 + ... + 19415.

It is an arithmetic number, because the mean of its divisors is an integer number (5741604).

Almost surely, 257349905 is an apocalyptic number.

It is an amenable number.

57349905 is a deficient number, since it is larger than the sum of its proper divisors (34515759).

57349905 is a wasteful number, since it uses less digits than its factorization.

57349905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 57349905 is about 7572.9720057584. The cubic root of 57349905 is about 385.6359983186.

The spelling of 57349905 in words is "fifty-seven million, three hundred forty-nine thousand, nine hundred five".

Divisors: 1 3 5 15 1187 3221 3561 5935 9663 16105 17805 48315 3823327 11469981 19116635 57349905