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80796479147 = 312606338037
BaseRepresentation
bin100101100111111011…
…0000110111010101011
321201112211211101222122
41023033312012322223
52310432344313042
6101041204541455
75560132512146
oct1131766067253
9251484741878
1080796479147
11312a156270a
12137aa6b188b
137808154257
143ca686905d
15217d39c7d2
hex12cfd86eab

80796479147 has 4 divisors (see below), whose sum is σ = 83402817216. Its totient is φ = 78190141080.

The previous prime is 80796479129. The next prime is 80796479161. The reversal of 80796479147 is 74197469708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80796479147 - 212 = 80796475051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80796479147.

It is not an unprimeable number, because it can be changed into a prime (80796479107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303168988 + ... + 1303169049.

It is an arithmetic number, because the mean of its divisors is an integer number (20850704304).

Almost surely, 280796479147 is an apocalyptic number.

80796479147 is a deficient number, since it is larger than the sum of its proper divisors (2606338069).

80796479147 is a wasteful number, since it uses less digits than its factorization.

80796479147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606338068.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 80796479147 in words is "eighty billion, seven hundred ninety-six million, four hundred seventy-nine thousand, one hundred forty-seven".

Divisors: 1 31 2606338037 80796479147