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79124125 = 53632993
BaseRepresentation
bin1001011011101…
…01011010011101
312111212220220011
410231311122131
5130223433000
611503523221
71650354403
oct455653235
9174786804
1079124125
1140733143
12225b9511
1313514812
14a719473
156e2e2ba
hex4b7569d

79124125 has 8 divisors (see below), whose sum is σ = 98747064. Its totient is φ = 63299200.

The previous prime is 79124083. The next prime is 79124203. The reversal of 79124125 is 52142197.

It can be written as a sum of positive squares in 4 ways, for example, as 24393721 + 54730404 = 4939^2 + 7398^2 .

It is not a de Polignac number, because 79124125 - 29 = 79123613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316372 + ... + 316621.

It is an arithmetic number, because the mean of its divisors is an integer number (12343383).

Almost surely, 279124125 is an apocalyptic number.

It is an amenable number.

79124125 is a deficient number, since it is larger than the sum of its proper divisors (19622939).

79124125 is an equidigital number, since it uses as much as digits as its factorization.

79124125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633008 (or 632998 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 79124125 is about 8895.1742534927. The cubic root of 79124125 is about 429.3086510866.

The spelling of 79124125 in words is "seventy-nine million, one hundred twenty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 632993 3164965 15824825 79124125