Search a number
-
+
13389613 = 31213933
BaseRepresentation
bin110011000100…
…111100101101
3221012021002121
4303010330231
511411431423
61154552541
7221544526
oct63047455
927167077
1013389613
1176158a6
124598751
132a0a663
141ac784d
15129745d
hexcc4f2d

13389613 has 6 divisors (see below), whose sum is σ = 13836462. Its totient is φ = 12956760.

The previous prime is 13389599. The next prime is 13389617. The reversal of 13389613 is 31698331.

It can be written as a sum of positive squares in only one way, i.e., 13380964 + 8649 = 3658^2 + 93^2 .

It is not a de Polignac number, because 13389613 - 213 = 13381421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6006 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (2306077).

Almost surely, 213389613 is an apocalyptic number.

It is an amenable number.

13389613 is a deficient number, since it is larger than the sum of its proper divisors (446849).

13389613 is an equidigital number, since it uses as much as digits as its factorization.

13389613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13995 (or 13964 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 13389613 is about 3659.1820124175. The cubic root of 13389613 is about 237.4593865918.

The spelling of 13389613 in words is "thirteen million, three hundred eighty-nine thousand, six hundred thirteen".

Divisors: 1 31 961 13933 431923 13389613