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57383880 = 2335478199
BaseRepresentation
bin1101101011100…
…1101111001000
310222222101212220
43122321233020
5104142241010
65405534040
71264516641
oct332715710
9128871786
1057383880
112a4343a4
1217274320
13bb72278
14789a6c8
155087970
hex36b9bc8

57383880 has 32 divisors (see below), whose sum is σ = 172152000. Its totient is φ = 15302336.

The previous prime is 57383867. The next prime is 57383881. The reversal of 57383880 is 8838375.

It is not an unprimeable number, because it can be changed into a prime (57383881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238980 + ... + 239219.

It is an arithmetic number, because the mean of its divisors is an integer number (5379750).

Almost surely, 257383880 is an apocalyptic number.

It is an amenable number.

57383880 is an abundant number, since it is smaller than the sum of its proper divisors (114768120).

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

57383880 is a wasteful number, since it uses less digits than its factorization.

57383880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478213 (or 478209 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 57383880 is about 7575.2148484383. The cubic root of 57383880 is about 385.7121355945.

The spelling of 57383880 in words is "fifty-seven million, three hundred eighty-three thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 478199 956398 1434597 1912796 2390995 2869194 3825592 4781990 5738388 7172985 9563980 11476776 14345970 19127960 28691940 57383880