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80802012 = 22322729663
BaseRepresentation
bin1001101000011…
…11000011011100
312122001011112010
410310033003130
5131141131022
612003511220
72000543244
oct464170334
9178034463
1080802012
1141679825
1223088510
1313981455
14aa34b24
15716150c
hex4d0f0dc

80802012 has 24 divisors (see below), whose sum is σ = 189374976. Its totient is φ = 26814448.

The previous prime is 80801989. The next prime is 80802017. The reversal of 80802012 is 21020808.

It is a self number, because there is not a number n which added to its sum of digits gives 80802012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80802017) 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, 12108 + ... + 17555.

It is an arithmetic number, because the mean of its divisors is an integer number (7890624).

Almost surely, 280802012 is an apocalyptic number.

It is an amenable number.

80802012 is an abundant number, since it is smaller than the sum of its proper divisors (108572964).

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

80802012 is a wasteful number, since it uses less digits than its factorization.

80802012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29897 (or 29895 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 80802012 is about 8988.9939370321. The cubic root of 80802012 is about 432.3220549452.

The spelling of 80802012 in words is "eighty million, eight hundred two thousand, twelve".

Divisors: 1 2 3 4 6 12 227 454 681 908 1362 2724 29663 59326 88989 118652 177978 355956 6733501 13467002 20200503 26934004 40401006 80802012