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57016938 = 23111914523
BaseRepresentation
bin1101100110000…
…0001001101010
310222021202112110
43121200021222
5104044020223
65354023150
71261431066
oct331401152
9128252473
1057016938
112a203740
1217117ab6
13ba74244
147802aa6
155013d93
hex366026a

57016938 has 32 divisors (see below), whose sum is σ = 125079552. Its totient is φ = 17183600.

The previous prime is 57016877. The next prime is 57016943. The reversal of 57016938 is 83961075.

It is a junction number, because it is equal to n+sod(n) for n = 57016896 and 57016905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10345 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (3908736).

Almost surely, 257016938 is an apocalyptic number.

57016938 is an abundant number, since it is smaller than the sum of its proper divisors (68062614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57016938 is a wasteful number, since it uses less digits than its factorization.

57016938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 57016938 is about 7550.9560984024. The cubic root of 57016938 is about 384.8882297688. Note that the first 3 decimals are identical.

The spelling of 57016938 in words is "fifty-seven million, sixteen thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 191 382 573 1146 2101 4202 4523 6303 9046 12606 13569 27138 49753 99506 149259 298518 863893 1727786 2591679 5183358 9502823 19005646 28508469 57016938