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113538879 = 32235379131
BaseRepresentation
bin1101100010001…
…11011100111111
321220122101001200
412301013130333
5213031221004
615133310543
72546031066
oct661073477
9256571050
10113538879
11590a9493
1232035453
131a6a408c
14111171dd
159e7b239
hex6c4773f

113538879 has 48 divisors (see below), whose sum is σ = 177914880. Its totient is φ = 69600960.

The previous prime is 113538839. The next prime is 113538883. The reversal of 113538879 is 978835311.

It is not a de Polignac number, because 113538879 - 29 = 113538367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113538839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 866644 + ... + 866774.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 2113538879 is an apocalyptic number.

113538879 is a deficient number, since it is larger than the sum of its proper divisors (64376001).

113538879 is a wasteful number, since it uses less digits than its factorization.

113538879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 289 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 113538879 is about 10655.4624019796. The cubic root of 113538879 is about 484.2261069882.

The spelling of 113538879 in words is "one hundred thirteen million, five hundred thirty-eight thousand, eight hundred seventy-nine".

Divisors: 1 3 9 23 53 69 79 131 159 207 237 393 477 711 1179 1219 1817 3013 3657 4187 5451 6943 9039 10349 10971 12561 16353 20829 27117 31047 37683 62487 93141 96301 159689 238027 288903 479067 548497 714081 866709 1437201 1645491 2142243 4936473 12615431 37846293 113538879