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80645022 = 23210494271
BaseRepresentation
bin1001100111010…
…00101110011110
312121202012011200
410303220232132
5131121120042
612000300330
71666320453
oct463505636
9177665150
1080645022
1141581887
12230116a6
1313927b63
14a9d382a
15712ec4c
hex4ce8b9e

80645022 has 24 divisors (see below), whose sum is σ = 174938400. Its totient is φ = 26849760.

The previous prime is 80645011. The next prime is 80645039. The reversal of 80645022 is 22054608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16747 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (7289100).

Almost surely, 280645022 is an apocalyptic number.

80645022 is an abundant number, since it is smaller than the sum of its proper divisors (94293378).

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

80645022 is a wasteful number, since it uses less digits than its factorization.

80645022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328 (or 5325 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 80645022 is about 8980.2573459785. The cubic root of 80645022 is about 432.0418876565.

The spelling of 80645022 in words is "eighty million, six hundred forty-five thousand, twenty-two".

Divisors: 1 2 3 6 9 18 1049 2098 3147 4271 6294 8542 9441 12813 18882 25626 38439 76878 4480279 8960558 13440837 26881674 40322511 80645022