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80913288 = 2334098243
BaseRepresentation
bin1001101001010…
…10001110001000
312122020211011110
410310222032020
5131203211123
612010130320
72001515541
oct464521610
9178224143
1080913288
1141745395
12231209a0
13139bccb1
14aa634c8
157184493
hex4d2a388

80913288 has 32 divisors (see below), whose sum is σ = 202802400. Its totient is φ = 26901888.

The previous prime is 80913271. The next prime is 80913307. The reversal of 80913288 is 88231908.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5695 + ... + 13937.

It is an arithmetic number, because the mean of its divisors is an integer number (6337575).

Almost surely, 280913288 is an apocalyptic number.

It is an amenable number.

80913288 is an abundant number, since it is smaller than the sum of its proper divisors (121889112).

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

80913288 is a wasteful number, since it uses less digits than its factorization.

80913288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8661 (or 8657 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 80913288 is about 8995.1813767150. The cubic root of 80913288 is about 432.5204204777.

The spelling of 80913288 in words is "eighty million, nine hundred thirteen thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 409 818 1227 1636 2454 3272 4908 8243 9816 16486 24729 32972 49458 65944 98916 197832 3371387 6742774 10114161 13485548 20228322 26971096 40456644 80913288