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80611651274 = 2711247586571
BaseRepresentation
bin100101100010011010…
…1000010111011001010
321201001222001011210212
41023010311002323022
52310043040320044
6101011003241122
75552426505320
oct1130465027312
9251058034725
1080611651274
11312071a2800
12137588191a2
1377a8a7ca4b
143c8a0b5d10
15216c03da9e
hex12c4d42eca

80611651274 has 24 divisors (see below), whose sum is σ = 151896337824. Its totient is φ = 31407136200.

The previous prime is 80611651231. The next prime is 80611651279. The reversal of 80611651274 is 47215611608.

It is a super-2 number, since 2×806116512742 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80611651279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23791592 + ... + 23794979.

It is an arithmetic number, because the mean of its divisors is an integer number (6329014076).

Almost surely, 280611651274 is an apocalyptic number.

80611651274 is a deficient number, since it is larger than the sum of its proper divisors (71284686550).

80611651274 is a wasteful number, since it uses less digits than its factorization.

80611651274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47586602 (or 47586591 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 80611651274 in words is "eighty billion, six hundred eleven million, six hundred fifty-one thousand, two hundred seventy-four".

Divisors: 1 2 7 11 14 22 77 121 154 242 847 1694 47586571 95173142 333105997 523452281 666211994 1046904562 3664165967 5757975091 7328331934 11515950182 40305825637 80611651274