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57668172 = 22310147581
BaseRepresentation
bin1101101111111…
…1001001001100
311000111211212020
43123333021030
5104230340142
65420010140
71300112532
oct333771114
9130454766
1057668172
112a608a51
1217390950
13bc417a3
147932152
1550e1cec
hex36ff24c

57668172 has 24 divisors (see below), whose sum is σ = 135894192. Its totient is φ = 19032000.

The previous prime is 57668161. The next prime is 57668189. The reversal of 57668172 is 27186675.

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, 22579 + ... + 25002.

It is an arithmetic number, because the mean of its divisors is an integer number (5662258).

Almost surely, 257668172 is an apocalyptic number.

It is an amenable number.

57668172 is an abundant number, since it is smaller than the sum of its proper divisors (78226020).

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

57668172 is a wasteful number, since it uses less digits than its factorization.

57668172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47689 (or 47687 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 57668172 is about 7593.9562811488. The cubic root of 57668172 is about 386.3480533625.

The spelling of 57668172 in words is "fifty-seven million, six hundred sixty-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 47581 95162 142743 190324 285486 570972 4805681 9611362 14417043 19222724 28834086 57668172