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57757668 = 2234813139
BaseRepresentation
bin1101110001010…
…0111111100100
311000200101121220
43130110333210
5104241221133
65421540340
71300634463
oct334247744
9130611556
1057757668
112a66a211
12174146b0
13bc73447
1479569da
15510d5b3
hex3714fe4

57757668 has 12 divisors (see below), whose sum is σ = 134767920. Its totient is φ = 19252552.

The previous prime is 57757649. The next prime is 57757699. The reversal of 57757668 is 86675775.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 57757668.

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, 2406558 + ... + 2406581.

It is an arithmetic number, because the mean of its divisors is an integer number (11230660).

Almost surely, 257757668 is an apocalyptic number.

It is an amenable number.

57757668 is an abundant number, since it is smaller than the sum of its proper divisors (77010252).

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

57757668 is a wasteful number, since it uses less digits than its factorization.

57757668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813146 (or 4813144 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 51.

The square root of 57757668 is about 7599.8465773988. The cubic root of 57757668 is about 386.5478096172.

The spelling of 57757668 in words is "fifty-seven million, seven hundred fifty-seven thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 4813139 9626278 14439417 19252556 28878834 57757668