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80699207288 = 2379467152219
BaseRepresentation
bin100101100101000001…
…1000010111001111000
321201022001210111002012
41023022003002321320
52310232444113123
6101023412025052
75554541641550
oct1131203027170
9251261714065
1080699207288
1131251664947
1213782002188
1377c0c5743b
143c97988160
152174a86378
hex12ca0c2e78

80699207288 has 32 divisors (see below), whose sum is σ = 172946275200. Its totient is φ = 34581494112.

The previous prime is 80699207269. The next prime is 80699207339. The reversal of 80699207288 is 88270299608.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454043 + ... + 606261.

It is an arithmetic number, because the mean of its divisors is an integer number (5404571100).

Almost surely, 280699207288 is an apocalyptic number.

It is an amenable number.

80699207288 is an abundant number, since it is smaller than the sum of its proper divisors (92247067912).

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

80699207288 is a wasteful number, since it uses less digits than its factorization.

80699207288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161699 (or 161695 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 80699207288 in words is "eighty billion, six hundred ninety-nine million, two hundred seven thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 9467 18934 37868 66269 75736 132538 152219 265076 304438 530152 608876 1065533 1217752 2131066 4262132 8524264 1441057273 2882114546 5764229092 10087400911 11528458184 20174801822 40349603644 80699207288