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72074086560 = 2532577150207
BaseRepresentation
bin100001100011111110…
…0110100100010100000
320220000222002221202100
41003013330310202200
52140101431232220
653035501450400
75131030425150
oct1030774644240
9226028087670
1072074086560
1128625a40aa3
1211b75570a00
136a480615c8
1436ba278760
151d1c759d90
hex10c7f348a0

72074086560 has 144 divisors (see below), whose sum is σ = 281088976896. Its totient is φ = 16474074624.

The previous prime is 72074086547. The next prime is 72074086561. The reversal of 72074086560 is 6568047027.

72074086560 is a `hidden beast` number, since 7 + 2 + 0 + 7 + 4 + 0 + 86 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (72074086561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3565024 + ... + 3585183.

It is an arithmetic number, because the mean of its divisors is an integer number (1952006784).

Almost surely, 272074086560 is an apocalyptic number.

72074086560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72074086560 is an abundant number, since it is smaller than the sum of its proper divisors (209014890336).

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

72074086560 is a wasteful number, since it uses less digits than its factorization.

72074086560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150235 (or 7150224 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 72074086560 in words is "seventy-two billion, seventy-four million, eighty-six thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 630 672 720 840 1008 1120 1260 1440 1680 2016 2520 3360 5040 10080 7150207 14300414 21450621 28600828 35751035 42901242 50051449 57201656 64351863 71502070 85802484 100102898 107253105 114403312 128703726 143004140 150154347 171604968 200205796 214506210 228806624 250257245 257407452 286008280 300308694 321759315 343209936 400411592 429012420 450463041 500514490 514814904 572016560 600617388 643518630 686419872 750771735 800823184 858024840 900926082 1001028980 1029629808 1144033120 1201234776 1287037260 1501543470 1601646368 1716049680 1801852164 2002057960 2059259616 2252315205 2402469552 2574074520 3003086940 3432099360 3603704328 4004115920 4504630410 4804939104 5148149040 6006173880 7207408656 8008231840 9009260820 10296298080 12012347760 14414817312 18018521640 24024695520 36037043280 72074086560