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79113897 = 3274311831
BaseRepresentation
bin1001011011100…
…10111010101001
312111212101212100
410231302322221
5130223121042
611503404013
71650312522
oct455627251
9174771770
1079113897
1140726495
12225b3609
131350cc75
14a715849
156e2b24c
hex4b72ea9

79113897 has 12 divisors (see below), whose sum is σ = 114439104. Its totient is φ = 52667160.

The previous prime is 79113893. The next prime is 79113901. The reversal of 79113897 is 79831197.

It is an interprime number because it is at equal distance from previous prime (79113893) and next prime (79113901).

It is not a de Polignac number, because 79113897 - 22 = 79113893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79113893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 772 + ... + 12602.

It is an arithmetic number, because the mean of its divisors is an integer number (9536592).

Almost surely, 279113897 is an apocalyptic number.

It is an amenable number.

79113897 is a deficient number, since it is larger than the sum of its proper divisors (35325207).

79113897 is a wasteful number, since it uses less digits than its factorization.

79113897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12580 (or 12577 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 79113897 is about 8894.5993164392. The cubic root of 79113897 is about 429.2901520591.

The spelling of 79113897 in words is "seventy-nine million, one hundred thirteen thousand, eight hundred ninety-seven".

Divisors: 1 3 9 743 2229 6687 11831 35493 106479 8790433 26371299 79113897