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13139113 = 131759453
BaseRepresentation
bin110010000111…
…110010101001
3220201112110211
4302013302221
511330422423
61145341121
7216452311
oct62076251
926645424
1013139113
117464679
1244977a1
132950630
141a60441
15124810d
hexc87ca9

13139113 has 8 divisors (see below), whose sum is σ = 14982408. Its totient is φ = 11414784.

The previous prime is 13139111. The next prime is 13139129. The reversal of 13139113 is 31193131.

13139113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3229209 + 9909904 = 1797^2 + 3148^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13139113 - 21 = 13139111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13139111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29506 + ... + 29947.

It is an arithmetic number, because the mean of its divisors is an integer number (1872801).

Almost surely, 213139113 is an apocalyptic number.

13139113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13139113 is a deficient number, since it is larger than the sum of its proper divisors (1843295).

13139113 is a wasteful number, since it uses less digits than its factorization.

13139113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59483.

The product of its digits is 243, while the sum is 22.

The square root of 13139113 is about 3624.7914422764. The cubic root of 13139113 is about 235.9692157970.

The spelling of 13139113 in words is "thirteen million, one hundred thirty-nine thousand, one hundred thirteen".

Divisors: 1 13 17 221 59453 772889 1010701 13139113