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80345971008 = 2637574031
BaseRepresentation
bin100101011010011111…
…1100011100101000000
321200101110010020000000
41022310333203211000
52304022032033013
6100524353000000
75543022325302
oct1126477434500
9250343106000
1080345971008
113109022a236
12136a3853000
137765a0a1a4
143c62ab7972
152153a5d973
hex12b4fe3940

80345971008 has 112 divisors (see below), whose sum is σ = 239118769920. Its totient is φ = 26781943680.

The previous prime is 80345970977. The next prime is 80345971031. The reversal of 80345971008 is 80017954308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147048 + ... + 426983.

Almost surely, 280345971008 is an apocalyptic number.

It is an amenable number.

80345971008 is an abundant number, since it is smaller than the sum of its proper divisors (158772798912).

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

80345971008 is an frugal number, since it uses more digits than its factorization.

80345971008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574064 (or 574036 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 80345971008 in words is "eighty billion, three hundred forty-five million, nine hundred seventy-one thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 486 576 648 729 864 972 1296 1458 1728 1944 2187 2592 2916 3888 4374 5184 5832 7776 8748 11664 15552 17496 23328 34992 46656 69984 139968 574031 1148062 1722093 2296124 3444186 4592248 5166279 6888372 9184496 10332558 13776744 15498837 18368992 20665116 27553488 30997674 36737984 41330232 46496511 55106976 61995348 82660464 92993022 110213952 123990696 139489533 165320928 185986044 247981392 278979066 330641856 371972088 418468599 495962784 557958132 743944176 836937198 991925568 1115916264 1255405797 1487888352 1673874396 2231832528 2510811594 2975776704 3347748792 4463665056 5021623188 6695497584 8927330112 10043246376 13390995168 20086492752 26781990336 40172985504 80345971008