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80820896376 = 23311306139759
BaseRepresentation
bin100101101000101001…
…1010000001001111000
321201121112202221010110
41023101103100021320
52311010122141001
6101043440144320
75560550166333
oct1132123201170
9251545687113
1080820896376
113130431a740
12137b69080a0
13781022310c
143ca9bc361a
1521805c23d6
hex12d14d0278

80820896376 has 32 divisors (see below), whose sum is σ = 220420627200. Its totient is φ = 24491180640.

The previous prime is 80820896363. The next prime is 80820896399. The reversal of 80820896376 is 67369802808.

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, 153069616 + ... + 153070143.

It is an arithmetic number, because the mean of its divisors is an integer number (6888144600).

Almost surely, 280820896376 is an apocalyptic number.

It is an amenable number.

80820896376 is an abundant number, since it is smaller than the sum of its proper divisors (139599730824).

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

80820896376 is a wasteful number, since it uses less digits than its factorization.

80820896376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306139779 (or 306139775 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 80820896376 in words is "eighty billion, eight hundred twenty million, eight hundred ninety-six thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 306139759 612279518 918419277 1224559036 1836838554 2449118072 3367537349 3673677108 6735074698 7347354216 10102612047 13470149396 20205224094 26940298792 40410448188 80820896376