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57238970378 = 2234328937801
BaseRepresentation
bin110101010011101101…
…010110000000001010
312110202002012222010212
4311103231112000022
51414211134023003
642143433441122
74064302135442
oct652355260012
9173662188125
1057238970378
11223029a76a7
12b1152701a2
135522725c55
142aadcd5122
151750164dd8
hexd53b5600a

57238970378 has 16 divisors (see below), whose sum is σ = 91674956736. Its totient is φ = 26738527200.

The previous prime is 57238970359. The next prime is 57238970407. The reversal of 57238970378 is 87307983275.

It is a super-2 number, since 2×572389703782 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14466923 + ... + 14470878.

It is an arithmetic number, because the mean of its divisors is an integer number (5729684796).

Almost surely, 257238970378 is an apocalyptic number.

57238970378 is a deficient number, since it is larger than the sum of its proper divisors (34435986358).

57238970378 is a wasteful number, since it uses less digits than its factorization.

57238970378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28937869.

The product of its (nonzero) digits is 17781120, while the sum is 59.

The spelling of 57238970378 in words is "fifty-seven billion, two hundred thirty-eight million, nine hundred seventy thousand, three hundred seventy-eight".

Divisors: 1 2 23 43 46 86 989 1978 28937801 57875602 665569423 1244325443 1331138846 2488650886 28619485189 57238970378