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80988842 = 2112326959
BaseRepresentation
bin1001101001111…
…00101010101010
312122101122210202
410310330222222
5131213120332
612011512202
72002252034
oct464745252
9178348722
1080988842
1141797130
1223158662
1313a184bc
14aa82c54
15719ba62
hex4d3caaa

80988842 has 24 divisors (see below), whose sum is σ = 138559680. Its totient is φ = 35207480.

The previous prime is 80988839. The next prime is 80988857. The reversal of 80988842 is 24888908.

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, 8159 + ... + 15117.

It is an arithmetic number, because the mean of its divisors is an integer number (5773320).

Almost surely, 280988842 is an apocalyptic number.

80988842 is a deficient number, since it is larger than the sum of its proper divisors (57570838).

80988842 is a wasteful number, since it uses less digits than its factorization.

80988842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 80988842 is about 8999.3800897617. The cubic root of 80988842 is about 432.6550027469.

The spelling of 80988842 in words is "eighty million, nine hundred eighty-eight thousand, eight hundred forty-two".

Divisors: 1 2 11 22 23 46 253 506 529 1058 5819 6959 11638 13918 76549 153098 160057 320114 1760627 3521254 3681311 7362622 40494421 80988842