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57507371406 = 2323194853967
BaseRepresentation
bin110101100011101101…
…001101100110001110
312111102210021011010200
4311203231031212032
51420233341341111
642230222314330
74104041406642
oct654355154616
9174383234120
1057507371406
1122430459331
12b18b1289a6
13556620c024
142ad7800c22
1517689d1256
hexd63b4d98e

57507371406 has 12 divisors (see below), whose sum is σ = 124599304752. Its totient is φ = 19169123796.

The previous prime is 57507371399. The next prime is 57507371429. The reversal of 57507371406 is 60417370575.

57507371406 is a `hidden beast` number, since 575 + 0 + 7 + 3 + 71 + 4 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1597426966 + ... + 1597427001.

It is an arithmetic number, because the mean of its divisors is an integer number (10383275396).

Almost surely, 257507371406 is an apocalyptic number.

57507371406 is an abundant number, since it is smaller than the sum of its proper divisors (67091933346).

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

57507371406 is a wasteful number, since it uses less digits than its factorization.

57507371406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194853975 (or 3194853972 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 57507371406 in words is "fifty-seven billion, five hundred seven million, three hundred seventy-one thousand, four hundred six".

Divisors: 1 2 3 6 9 18 3194853967 6389707934 9584561901 19169123802 28753685703 57507371406