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68000080808 = 23111367565273
BaseRepresentation
bin111111010101000111…
…101110001110101000
320111112001011000111102
4333111013232032220
52103231010041213
651123325420532
74625051102312
oct772507561650
9214461130442
1068000080808
11269253001a0
121121910a748
136548ccb00a
14341117c7b2
151b7ec67158
hexfd51ee3a8

68000080808 has 32 divisors (see below), whose sum is σ = 139193069760. Its totient is φ = 30886462080.

The previous prime is 68000080787. The next prime is 68000080831. The reversal of 68000080808 is 80808000086.

68000080808 is a modest number, since divided by 80808 gives 68000 as remainder.

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, 162341 + ... + 402932.

It is an arithmetic number, because the mean of its divisors is an integer number (4349783430).

Almost surely, 268000080808 is an apocalyptic number.

It is an amenable number.

68000080808 is an abundant number, since it is smaller than the sum of its proper divisors (71192988952).

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

68000080808 is a wasteful number, since it uses less digits than its factorization.

68000080808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566657 (or 566653 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The spelling of 68000080808 in words is "sixty-eight billion, eighty thousand, eight hundred eight".

Divisors: 1 2 4 8 11 22 44 88 1367 2734 5468 10936 15037 30074 60148 120296 565273 1130546 2261092 4522184 6218003 12436006 24872012 49744024 772728191 1545456382 3090912764 6181825528 8500010101 17000020202 34000040404 68000080808