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57383660 = 22511325391
BaseRepresentation
bin1101101011100…
…1101011101100
310222222101120202
43122321223230
5104142234120
65405533032
71264516205
oct332715354
9128871522
1057383660
112a434214
1217274178
13bb72139
14789a5ac
155087875
hex36b9aec

57383660 has 24 divisors (see below), whose sum is σ = 121576896. Its totient is φ = 22749440.

The previous prime is 57383647. The next prime is 57383671. The reversal of 57383660 is 6638375.

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, 10436 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (5065704).

Almost surely, 257383660 is an apocalyptic number.

It is an amenable number.

57383660 is an abundant number, since it is smaller than the sum of its proper divisors (64193236).

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

57383660 is a wasteful number, since it uses less digits than its factorization.

57383660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25513 (or 25511 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 57383660 is about 7575.2003273841. The cubic root of 57383660 is about 385.7116426757.

The spelling of 57383660 in words is "fifty-seven million, three hundred eighty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 2260 25391 50782 101564 126955 253910 507820 2869183 5738366 11476732 14345915 28691830 57383660