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57999955 = 513268639
BaseRepresentation
bin1101110101000…
…0001001010011
311001010200222111
43131100021103
5104321444310
65431050151
71302664036
oct335201123
9131120874
1057999955
112a815252
1217510957
13c029800
1479bb01d
15515a28a
hex3750253

57999955 has 12 divisors (see below), whose sum is σ = 75366720. Its totient is φ = 42830112.

The previous prime is 57999941. The next prime is 58000003. The reversal of 57999955 is 55999975.

It is not a de Polignac number, because 57999955 - 25 = 57999923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57999955.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33475 + ... + 35164.

It is an arithmetic number, because the mean of its divisors is an integer number (6280560).

Almost surely, 257999955 is an apocalyptic number.

57999955 is a deficient number, since it is larger than the sum of its proper divisors (17366765).

57999955 is a wasteful number, since it uses less digits than its factorization.

57999955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68670 (or 68657 counting only the distinct ones).

The product of its digits is 5740875, while the sum is 58.

The square root of 57999955 is about 7615.7701514686. The cubic root of 57999955 is about 387.0875639539.

The spelling of 57999955 in words is "fifty-seven million, nine hundred ninety-nine thousand, nine hundred fifty-five".

Divisors: 1 5 13 65 169 845 68639 343195 892307 4461535 11599991 57999955