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80507502530 = 25713831065901
BaseRepresentation
bin100101011111010011…
…1101111111111000010
321200210201001212120222
41022332213233333002
52304334410040110
6100552403103042
75550023323550
oct1127647577702
9250721055528
1080507502530
1131163428264
1213729971a82
137790315a80
143c7a324bd0
152162d19c55
hex12be9effc2

80507502530 has 64 divisors (see below), whose sum is σ = 180504108288. Its totient is φ = 25172294400.

The previous prime is 80507502437. The next prime is 80507502547. The reversal of 80507502530 is 3520570508.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon 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, 457421 + ... + 608480.

It is an arithmetic number, because the mean of its divisors is an integer number (2820376692).

Almost surely, 280507502530 is an apocalyptic number.

80507502530 is an abundant number, since it is smaller than the sum of its proper divisors (99996605758).

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

80507502530 is a wasteful number, since it uses less digits than its factorization.

80507502530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066011.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 80507502530 in words is "eighty billion, five hundred seven million, five hundred two thousand, five hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 83 91 130 166 182 415 455 581 830 910 1079 1162 2158 2905 5395 5810 7553 10790 15106 37765 75530 1065901 2131802 5329505 7461307 10659010 13856713 14922614 27713426 37306535 69283565 74613070 88469783 96996991 138567130 176939566 193993982 442348915 484984955 619288481 884697830 969969910 1150107179 1238576962 2300214358 3096442405 5750535895 6192884810 8050750253 11501071790 16101500506 40253751265 80507502530