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80866472 = 23149179379
BaseRepresentation
bin1001101000111…
…10110010101000
312122011102221112
410310132302220
5131200211342
612005125452
72001232211
oct464366250
9178142845
1080866472
11417131a5
12230b9888
13139a48ab
14aa50408
157175682
hex4d1eca8

80866472 has 32 divisors (see below), whose sum is σ = 153900000. Its totient is φ = 39832128.

The previous prime is 80866469. The next prime is 80866477. The reversal of 80866472 is 27466808.

It is not an unprimeable number, because it can be changed into a prime (80866477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213179 + ... + 213557.

It is an arithmetic number, because the mean of its divisors is an integer number (4809375).

Almost surely, 280866472 is an apocalyptic number.

It is an amenable number.

80866472 is a deficient number, since it is larger than the sum of its proper divisors (73033528).

80866472 is a wasteful number, since it uses less digits than its factorization.

80866472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 80866472 is about 8992.5787180319. The cubic root of 80866472 is about 432.4369863757.

The spelling of 80866472 in words is "eighty million, eight hundred sixty-six thousand, four hundred seventy-two".

Divisors: 1 2 4 8 149 179 298 358 379 596 716 758 1192 1432 1516 3032 26671 53342 56471 67841 106684 112942 135682 213368 225884 271364 451768 542728 10108309 20216618 40433236 80866472