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79494982161 = 375964160599
BaseRepresentation
bin100101000001001000…
…1010010101000010001
321121012010211111202120
41022002101102220101
52300301203412121
6100304113204453
75512650125250
oct1120221225021
9247163744676
1079494982161
1130793932771
12134a6860729
13765b613aaa
143bc1a78797
152103eb3bc6
hex1282452a11

79494982161 has 16 divisors (see below), whose sum is σ = 123188352000. Its totient is φ = 44655776208.

The previous prime is 79494982159. The next prime is 79494982187. The reversal of 79494982161 is 16128949497.

It is not a de Polignac number, because 79494982161 - 21 = 79494982159 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79494982095 and 79494982104.

It is not an unprimeable number, because it can be changed into a prime (79494982261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32079061 + ... + 32081538.

It is an arithmetic number, because the mean of its divisors is an integer number (7699272000).

Almost surely, 279494982161 is an apocalyptic number.

It is an amenable number.

79494982161 is a deficient number, since it is larger than the sum of its proper divisors (43693369839).

79494982161 is a wasteful number, since it uses less digits than its factorization.

79494982161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64160668.

The product of its digits is 7838208, while the sum is 60.

The spelling of 79494982161 in words is "seventy-nine billion, four hundred ninety-four million, nine hundred eighty-two thousand, one hundred sixty-one".

Divisors: 1 3 7 21 59 177 413 1239 64160599 192481797 449124193 1347372579 3785475341 11356426023 26498327387 79494982161