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80320829960 = 23571272258741
BaseRepresentation
bin100101011001101111…
…1101001101000001000
321200022200210220222002
41022303133221220020
52303444113024320
6100522054050132
75542265534630
oct1126337515010
9250280726862
1080320829960
1131078018408
1213697349948
137760746a27
143c5d6116c0
152151744675
hex12b37e9a08

80320829960 has 64 divisors (see below), whose sum is σ = 208165662720. Its totient is φ = 27321719040.

The previous prime is 80320829959. The next prime is 80320829971. The reversal of 80320829960 is 6992802308.

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, 1093811 + ... + 1164930.

It is an arithmetic number, because the mean of its divisors is an integer number (3252588480).

Almost surely, 280320829960 is an apocalyptic number.

It is an amenable number.

80320829960 is an abundant number, since it is smaller than the sum of its proper divisors (127844832760).

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

80320829960 is a wasteful number, since it uses less digits than its factorization.

80320829960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258886 (or 2258882 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 80320829960 in words is "eighty billion, three hundred twenty million, eight hundred twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 127 140 254 280 508 635 889 1016 1270 1778 2540 3556 4445 5080 7112 8890 17780 35560 2258741 4517482 9034964 11293705 15811187 18069928 22587410 31622374 45174820 63244748 79055935 90349640 126489496 158111870 286860107 316223740 573720214 632447480 1147440428 1434300535 2008020749 2294880856 2868601070 4016041498 5737202140 8032082996 10040103745 11474404280 16064165992 20080207490 40160414980 80320829960