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13239 = 321471
BaseRepresentation
bin11001110110111
3200011100
43032313
5410424
6141143
753412
oct31667
920140
1013239
119a46
1277b3
136045
144b79
153dc9
hex33b7

13239 has 6 divisors (see below), whose sum is σ = 19136. Its totient is φ = 8820.

The previous prime is 13229. The next prime is 13241. The reversal of 13239 is 93231.

It is not a de Polignac number, because 13239 - 28 = 12983 is a prime.

It is a super-2 number, since 2×132392 = 350542242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 727 + ... + 744.

213239 is an apocalyptic number.

13239 is a deficient number, since it is larger than the sum of its proper divisors (5897).

13239 is a wasteful number, since it uses less digits than its factorization.

13239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1474 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 13239 is about 115.0608534646. The cubic root of 13239 is about 23.6565673588.

It can be divided in two parts, 132 and 39, that added together give a palindrome (171).

The spelling of 13239 in words is "thirteen thousand, two hundred thirty-nine".

Divisors: 1 3 9 1471 4413 13239