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80492445180 = 22325763882893
BaseRepresentation
bin100101011110110111…
…0010011110111111100
321200202122201212210100
41022331232103313330
52304322031221210
6100551104241100
75546451331560
oct1127556236774
9250678655710
1080492445180
1131155983474
1213724910190
13778a1732b4
143c783256a0
1521618435c0
hex12bdb93dfc

80492445180 has 72 divisors (see below), whose sum is σ = 279040480992. Its totient is φ = 18398272896.

The previous prime is 80492445133. The next prime is 80492445277. The reversal of 80492445180 is 8154429408.

80492445180 is a `hidden beast` number, since 8 + 0 + 4 + 92 + 44 + 518 + 0 = 666.

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

It is a congruent number.

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, 31940187 + ... + 31942706.

It is an arithmetic number, because the mean of its divisors is an integer number (3875562236).

Almost surely, 280492445180 is an apocalyptic number.

It is an amenable number.

80492445180 is an abundant number, since it is smaller than the sum of its proper divisors (198548035812).

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

80492445180 is a wasteful number, since it uses less digits than its factorization.

80492445180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63882915 (or 63882910 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 80492445180 in words is "eighty billion, four hundred ninety-two million, four hundred forty-five thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 63882893 127765786 191648679 255531572 319414465 383297358 447180251 574946037 638828930 766594716 894360502 958243395 1149892074 1277657860 1341540753 1788721004 1916486790 2235901255 2299784148 2683081506 2874730185 3832973580 4024622259 4471802510 5366163012 5749460370 6707703765 8049244518 8943605020 11498920740 13415407530 16098489036 20123111295 26830815060 40246222590 80492445180