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80807568 = 2431683491
BaseRepresentation
bin1001101000100…
…00011010010000
312122001110010220
410310100122100
5131141320233
612003553040
72000565402
oct464203220
9178043126
1080807568
1141682a16
122308b780
1313983b3a
14aa36b72
157162eb3
hex4d10690

80807568 has 20 divisors (see below), whose sum is σ = 208753008. Its totient is φ = 26935840.

The previous prime is 80807567. The next prime is 80807603. The reversal of 80807568 is 86570808.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80807567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841698 + ... + 841793.

Almost surely, 280807568 is an apocalyptic number.

It is an amenable number.

80807568 is an abundant number, since it is smaller than the sum of its proper divisors (127945440).

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

80807568 is a wasteful number, since it uses less digits than its factorization.

80807568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683502 (or 1683496 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 80807568 is about 8989.3029763158. The cubic root of 80807568 is about 432.3319636353.

The spelling of 80807568 in words is "eighty million, eight hundred seven thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 1683491 3366982 5050473 6733964 10100946 13467928 20201892 26935856 40403784 80807568