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56507350965 = 35131971470971
BaseRepresentation
bin110100101000000110…
…011011111110110101
312101212002112211222120
4310220012123332311
51411211340212330
641543100350153
74040206362312
oct645006337665
9171762484876
1056507350965
1121a67a2115a
12ab50245359
135436c95760
142a40a89d09
15170ace8c10
hexd2819bfb5

56507350965 has 32 divisors (see below), whose sum is σ = 97860825216. Its totient is φ = 27677771520.

The previous prime is 56507350951. The next prime is 56507351029. The reversal of 56507350965 is 56905370565.

It is not a de Polignac number, because 56507350965 - 218 = 56507088821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697071 + ... + 773900.

It is an arithmetic number, because the mean of its divisors is an integer number (3058150788).

Almost surely, 256507350965 is an apocalyptic number.

It is an amenable number.

56507350965 is a deficient number, since it is larger than the sum of its proper divisors (41353474251).

56507350965 is a wasteful number, since it uses less digits than its factorization.

56507350965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471189.

The product of its (nonzero) digits is 4252500, while the sum is 51.

The spelling of 56507350965 in words is "fifty-six billion, five hundred seven million, three hundred fifty thousand, nine hundred sixty-five".

Divisors: 1 3 5 13 15 39 65 195 197 591 985 2561 2955 7683 12805 38415 1470971 4412913 7354855 19122623 22064565 57367869 95613115 286839345 289781287 869343861 1448906435 3767156731 4346719305 11301470193 18835783655 56507350965