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79814621308 = 221710311395577
BaseRepresentation
bin100101001010101010…
…0100111100001111100
321122000102021212020111
41022111110213201330
52301430020340213
6100355532155404
75523611041642
oct1122524474174
9248012255214
1079814621308
1130938300354
1213575908b64
1376ac8c9996
143c122c1192
1521220a1a3d
hex129552787c

79814621308 has 24 divisors (see below), whose sum is σ = 149327654112. Its totient is φ = 37195160064.

The previous prime is 79814621297. The next prime is 79814621323. The reversal of 79814621308 is 80312641897.

It is a congruent number.

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, 5690785 + ... + 5704792.

It is an arithmetic number, because the mean of its divisors is an integer number (6221985588).

Almost surely, 279814621308 is an apocalyptic number.

It is an amenable number.

79814621308 is a deficient number, since it is larger than the sum of its proper divisors (69513032804).

79814621308 is a wasteful number, since it uses less digits than its factorization.

79814621308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395701 (or 11395699 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 79814621308 in words is "seventy-nine billion, eight hundred fourteen million, six hundred twenty-one thousand, three hundred eight".

Divisors: 1 2 4 17 34 68 103 206 412 1751 3502 7004 11395577 22791154 45582308 193724809 387449618 774899236 1173744431 2347488862 4694977724 19953655327 39907310654 79814621308