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80257853628 = 22322229384823
BaseRepresentation
bin100101010111110111…
…1011010100010111100
321200011022022101200100
41022233233122202330
52303332002304003
6100511524201100
75540602333311
oct1125757324274
9250138271610
1080257853628
1131045514357
121367a239190
137750697124
143c550dad08
15214ae54ba3
hex12afbda8bc

80257853628 has 18 divisors (see below), whose sum is σ = 202874018984. Its totient is φ = 26752617864.

The previous prime is 80257853609. The next prime is 80257853657. The reversal of 80257853628 is 82635875208.

80257853628 is a `hidden beast` number, since 8 + 0 + 2 + 5 + 7 + 8 + 5 + 3 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114692376 + ... + 1114692447.

Almost surely, 280257853628 is an apocalyptic number.

It is an amenable number.

80257853628 is an abundant number, since it is smaller than the sum of its proper divisors (122616165356).

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

80257853628 is a wasteful number, since it uses less digits than its factorization.

80257853628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229384833 (or 2229384828 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 80257853628 in words is "eighty billion, two hundred fifty-seven million, eight hundred fifty-three thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 2229384823 4458769646 6688154469 8917539292 13376308938 20064463407 26752617876 40128926814 80257853628