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80662626868 = 221729536711519
BaseRepresentation
bin100101100011111011…
…1100000001000110100
321201012111222000011211
41023013313200020310
52310144113024433
6101020024011204
75553616005235
oct1130767401064
9251174860154
1080662626868
1131232a4a49a
1213771900b04
1377b64ba215
143c92b8508c
15217175c8cd
hex12c7de0234

80662626868 has 96 divisors (see below), whose sum is σ = 159899443200. Its totient is φ = 35418679296.

The previous prime is 80662626857. The next prime is 80662626887. The reversal of 80662626868 is 86862626608.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6996813 + ... + 7008331.

It is an arithmetic number, because the mean of its divisors is an integer number (1665619200).

Almost surely, 280662626868 is an apocalyptic number.

It is an amenable number.

80662626868 is a deficient number, since it is larger than the sum of its proper divisors (79236816332).

80662626868 is a wasteful number, since it uses less digits than its factorization.

80662626868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11689 (or 11687 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 58.

The spelling of 80662626868 in words is "eighty billion, six hundred sixty-two million, six hundred twenty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 29 34 53 58 67 68 106 116 134 212 268 493 901 986 1139 1537 1802 1943 1972 2278 3074 3551 3604 3886 4556 6148 7102 7772 11519 14204 23038 26129 33031 46076 52258 60367 66062 102979 104516 120734 132124 195823 205958 241468 334051 391646 411916 610507 668102 771773 783292 1221014 1336204 1543546 1750643 2442028 3087092 3501286 5678867 7002572 10378619 11357734 13120141 17704703 20757238 22381417 22715468 26240282 35409406 40903969 41514476 44762834 52480564 70818812 81807938 89525668 163615876 300979951 380484089 601959902 695367473 760968178 1186215101 1203919804 1390734946 1521936356 2372430202 2781469892 4744860404 20165656717 40331313434 80662626868