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19680112320 = 2635111863647
BaseRepresentation
bin10010010101000001…
…101010111011000000
31212210112121021211220
4102111001222323000
5310301102043240
613012501035040
71264456123521
oct222501527300
955715537756
1019680112320
118389a01740
1239929b5a80
131b1833589b
14d49a16848
157a2b2e5d0
hex49506aec0

19680112320 has 112 divisors (see below), whose sum is σ = 68164789248. Its totient is φ = 4770933760.

The previous prime is 19680112279. The next prime is 19680112337. The reversal of 19680112320 is 2321108691.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 921264 + ... + 942383.

Almost surely, 219680112320 is an apocalyptic number.

19680112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19680112320 is an abundant number, since it is smaller than the sum of its proper divisors (48484676928).

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

19680112320 is a wasteful number, since it uses less digits than its factorization.

19680112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863678 (or 1863668 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 19680112320 in words is "nineteen billion, six hundred eighty million, one hundred twelve thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 132 160 165 176 192 220 240 264 320 330 352 440 480 528 660 704 880 960 1056 1320 1760 2112 2640 3520 5280 10560 1863647 3727294 5590941 7454588 9318235 11181882 14909176 18636470 20500117 22363764 27954705 29818352 37272940 41000234 44727528 55909410 59636704 61500351 74545880 82000468 89455056 102500585 111818820 119273408 123000702 149091760 164000936 178910112 205001170 223637640 246001404 298183520 307501755 328001872 357820224 410002340 447275280 492002808 596367040 615003510 656003744 820004680 894550560 984005616 1230007020 1312007488 1640009360 1789101120 1968011232 2460014040 3280018720 3936022464 4920028080 6560037440 9840056160 19680112320