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80701315688 = 2372323187877
BaseRepresentation
bin100101100101000101…
…1000101101001101000
321201022012202121021002
41023022023011221220
52310234014100223
6101023525134132
75554565602520
oct1131213055150
9251265677232
1080701315688
1131252874a24
121378285a348
1377c1515006
143c97d76680
152174d50e28
hex12ca2c5a68

80701315688 has 96 divisors (see below), whose sum is σ = 186610690560. Its totient is φ = 32014984320.

The previous prime is 80701315633. The next prime is 80701315691. The reversal of 80701315688 is 88651310708.

It is a happy 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, 874406 + ... + 962282.

It is an arithmetic number, because the mean of its divisors is an integer number (1943861360).

Almost surely, 280701315688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80701315688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93305345280).

80701315688 is an abundant number, since it is smaller than the sum of its proper divisors (105909374872).

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

80701315688 is a wasteful number, since it uses less digits than its factorization.

80701315688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87967 (or 87940 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 80701315688 in words is "eighty billion, seven hundred one million, three hundred fifteen thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 23 28 31 46 56 62 92 124 161 184 217 248 322 434 529 644 713 868 1058 1288 1426 1736 2116 2852 3703 4232 4991 5704 7406 9982 14812 16399 19964 29624 32798 39928 65596 87877 114793 131192 175754 229586 351508 459172 615139 703016 918344 1230278 2021171 2460556 2724187 4042342 4921112 5448374 8084684 10896748 14148197 16169368 19069309 21793496 28296394 38138618 46486933 56592788 62656301 76277236 92973866 113185576 125312602 152554472 185947732 250625204 325408531 371895464 438594107 501250408 650817062 877188214 1301634124 1441094923 1754376428 2603268248 2882189846 3508752856 5764379692 10087664461 11528759384 20175328922 40350657844 80701315688