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80697379752 = 233211113901687
BaseRepresentation
bin100101100100111110…
…0000100101110101000
321201021221100122011200
41023021330010232220
52310232012123002
6101023304524200
75554520260503
oct1131174045650
9251257318150
1080697379752
1131250626890
1213781480660
1377c0767662
143c9763013a
152174824b1c
hex12c9f04ba8

80697379752 has 96 divisors (see below), whose sum is σ = 240534290880. Its totient is φ = 24237319680.

The previous prime is 80697379751. The next prime is 80697379757. The reversal of 80697379752 is 25797379608.

It is a self number, because there is not a number n which added to its sum of digits gives 80697379752.

It is not an unprimeable number, because it can be changed into a prime (80697379751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361348 + ... + 540339.

It is an arithmetic number, because the mean of its divisors is an integer number (2505565530).

Almost surely, 280697379752 is an apocalyptic number.

It is an amenable number.

80697379752 is an abundant number, since it is smaller than the sum of its proper divisors (159836911128).

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

80697379752 is a wasteful number, since it uses less digits than its factorization.

80697379752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901823 (or 901816 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 80697379752 in words is "eighty billion, six hundred ninety-seven million, three hundred seventy-nine thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 113 132 198 226 264 339 396 452 678 792 904 1017 1243 1356 2034 2486 2712 3729 4068 4972 7458 8136 9944 11187 14916 22374 29832 44748 89496 901687 1803374 2705061 3606748 5410122 7213496 8115183 9918557 10820244 16230366 19837114 21640488 29755671 32460732 39674228 59511342 64921464 79348456 89267013 101890631 119022684 178534026 203781262 238045368 305671893 357068052 407562524 611343786 714136104 815125048 917015679 1120796941 1222687572 1834031358 2241593882 2445375144 3362390823 3668062716 4483187764 6724781646 7336125432 8966375528 10087172469 13449563292 20174344938 26899126584 40348689876 80697379752