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57195980 = 2252859799
BaseRepresentation
bin1101101000101…
…1110111001100
310222121212010122
43122023313030
5104120232410
65401524112
71263105062
oct332136714
9128555118
1057195980
112a316206
12171a3638
13bb0789a
14784c032
15504be55
hex368bdcc

57195980 has 12 divisors (see below), whose sum is σ = 120111600. Its totient is φ = 22878384.

The previous prime is 57195949. The next prime is 57195991. The reversal of 57195980 is 8959175.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429880 + ... + 1429919.

It is an arithmetic number, because the mean of its divisors is an integer number (10009300).

Almost surely, 257195980 is an apocalyptic number.

It is an amenable number.

57195980 is an abundant number, since it is smaller than the sum of its proper divisors (62915620).

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

57195980 is a wasteful number, since it uses less digits than its factorization.

57195980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859808 (or 2859806 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 57195980 is about 7562.8023906486. The cubic root of 57195980 is about 385.2906783269.

The spelling of 57195980 in words is "fifty-seven million, one hundred ninety-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2859799 5719598 11439196 14298995 28597990 57195980