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57427962780 = 22351138470201
BaseRepresentation
bin110101011110111110…
…010010101110011100
312111020020211202222110
4311132332102232130
51420103024302110
642214304314020
74102055425626
oct653676225634
9174206752873
1057427962780
112239a651471
12b168612910
135552927b86
142acb04dc16
151761a47a20
hexd5ef92b9c

57427962780 has 48 divisors (see below), whose sum is σ = 162221308704. Its totient is φ = 15178598400.

The previous prime is 57427962743. The next prime is 57427962833. The reversal of 57427962780 is 8726972475.

It is a super-2 number, since 2×574279627802 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57427962780.

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, 4228321 + ... + 4241880.

It is an arithmetic number, because the mean of its divisors is an integer number (3379610598).

Almost surely, 257427962780 is an apocalyptic number.

It is an amenable number.

57427962780 is an abundant number, since it is smaller than the sum of its proper divisors (104793345924).

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

57427962780 is a wasteful number, since it uses less digits than its factorization.

57427962780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470326 (or 8470324 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 57427962780 in words is "fifty-seven billion, four hundred twenty-seven million, nine hundred sixty-two thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 113 226 339 452 565 678 1130 1356 1695 2260 3390 6780 8470201 16940402 25410603 33880804 42351005 50821206 84702010 101642412 127053015 169404020 254106030 508212060 957132713 1914265426 2871398139 3828530852 4785663565 5742796278 9571327130 11485592556 14356990695 19142654260 28713981390 57427962780