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79113985 = 5592331151
BaseRepresentation
bin1001011011100…
…10111100000001
312111212101222121
410231302330001
5130223121420
611503404241
71650313006
oct455627401
9174771877
1079113985
1140726565
12225b3681
1313510012
14a7158ad
156e2b2aa
hex4b72f01

79113985 has 16 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 61897600.

The previous prime is 79113977. The next prime is 79114033. The reversal of 79113985 is 58931197.

It is not a de Polignac number, because 79113985 - 23 = 79113977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68160 + ... + 69310.

It is an arithmetic number, because the mean of its divisors is an integer number (6065280).

Almost surely, 279113985 is an apocalyptic number.

It is an amenable number.

79113985 is a deficient number, since it is larger than the sum of its proper divisors (17930495).

79113985 is a wasteful number, since it uses less digits than its factorization.

79113985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448.

The product of its digits is 68040, while the sum is 43.

The square root of 79113985 is about 8894.6042632598. The cubic root of 79113985 is about 429.2903112285.

The spelling of 79113985 in words is "seventy-nine million, one hundred thirteen thousand, nine hundred eighty-five".

Divisors: 1 5 59 233 295 1151 1165 5755 13747 67909 68735 268183 339545 1340915 15822797 79113985