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80807400072 = 23327227706309
BaseRepresentation
bin100101101000001111…
…1110001001010001000
321201120121101020200100
41023100133301022020
52310443143300242
6101042235005400
75560324365450
oct1132037611210
9251517336610
1080807400072
11312a7741773
12137b2299860
13780a4a9039
143ca80acd60
15217e30854c
hex12d07f1288

80807400072 has 96 divisors (see below), whose sum is σ = 251220340800. Its totient is φ = 22986087552.

The previous prime is 80807400019. The next prime is 80807400101. The reversal of 80807400072 is 27000470808.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238747 + ... + 467562.

It is an arithmetic number, because the mean of its divisors is an integer number (2616878550).

Almost surely, 280807400072 is an apocalyptic number.

It is an amenable number.

80807400072 is an abundant number, since it is smaller than the sum of its proper divisors (170412940728).

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

80807400072 is a wasteful number, since it uses less digits than its factorization.

80807400072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706555 (or 706548 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 80807400072 in words is "eighty billion, eight hundred seven million, four hundred thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 227 252 454 504 681 908 1362 1589 1816 2043 2724 3178 4086 4767 5448 6356 8172 9534 12712 14301 16344 19068 28602 38136 57204 114408 706309 1412618 2118927 2825236 4237854 4944163 5650472 6356781 8475708 9888326 12713562 14832489 16951416 19776652 25427124 29664978 39553304 44497467 50854248 59329956 88994934 118659912 160332143 177989868 320664286 355979736 480996429 641328572 961992858 1122325001 1282657144 1442989287 1923985716 2244650002 2885978574 3366975003 3847971432 4489300004 5771957148 6733950006 8978600008 10100925009 11543914296 13467900012 20201850018 26935800024 40403700036 80807400072