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57657455086 = 27113189135701
BaseRepresentation
bin110101101100101001…
…101111000111101110
312111211020200012020111
4311230221233013232
51421040302030321
642253143210234
74110543165460
oct655451570756
9174736605214
1057657455086
11224a8148430
12b21144697a
13558b33a03a
142b0d70c130
151776c7a5e1
hexd6ca6f1ee

57657455086 has 64 divisors (see below), whose sum is σ = 112556666880. Its totient is φ = 21494880000.

The previous prime is 57657455047. The next prime is 57657455087. The reversal of 57657455086 is 68055475675.

It is a self number, because there is not a number n which added to its sum of digits gives 57657455086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57657455087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357036 + ... + 492736.

It is an arithmetic number, because the mean of its divisors is an integer number (1758697920).

Almost surely, 257657455086 is an apocalyptic number.

57657455086 is a deficient number, since it is larger than the sum of its proper divisors (54899211794).

57657455086 is a wasteful number, since it uses less digits than its factorization.

57657455086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135841.

The product of its (nonzero) digits is 35280000, while the sum is 58.

The spelling of 57657455086 in words is "fifty-seven billion, six hundred fifty-seven million, four hundred fifty-five thousand, eighty-six".

Divisors: 1 2 7 11 14 22 31 62 77 89 154 178 217 341 434 623 682 979 1246 1958 2387 2759 4774 5518 6853 13706 19313 30349 38626 60698 135701 212443 271402 424886 949907 1492711 1899814 2985422 4206731 8413462 10448977 12077389 20897954 24154778 29447117 46274041 58894234 84541723 92548082 132851279 169083446 265702558 323918287 374399059 647836574 748798118 929958953 1859917906 2620793413 4118389649 5241586826 8236779298 28828727543 57657455086