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80745486 = 2343312967
BaseRepresentation
bin1001101000000…
…01010000001110
312121221021222120
410310001100032
5131132323421
612002353410
72000216403
oct464012016
9177837876
1080745486
1141640308
122305b866
13139617c3
14aa1c2aa
15714e8c6
hex4d0140e

80745486 has 16 divisors (see below), whose sum is σ = 165247104. Its totient is φ = 26289144.

The previous prime is 80745463. The next prime is 80745487. The reversal of 80745486 is 68454708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80745487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156226 + ... + 156741.

It is an arithmetic number, because the mean of its divisors is an integer number (10327944).

Almost surely, 280745486 is an apocalyptic number.

80745486 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80745486 is an abundant number, since it is smaller than the sum of its proper divisors (84501618).

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

80745486 is a wasteful number, since it uses less digits than its factorization.

80745486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313015.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 80745486 is about 8985.8492086168. The cubic root of 80745486 is about 432.2212194314.

The spelling of 80745486 in words is "eighty million, seven hundred forty-five thousand, four hundred eighty-six".

Divisors: 1 2 3 6 43 86 129 258 312967 625934 938901 1877802 13457581 26915162 40372743 80745486