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13311117 = 321479013
BaseRepresentation
bin110010110001…
…110010001101
3221001021102100
4302301302031
511401423432
61153145313
7221066631
oct62616215
927037370
1013311117
117571926
12455b239
1329b0a01
141aa6dc1
15127e07c
hexcb1c8d

13311117 has 6 divisors (see below), whose sum is σ = 19227182. Its totient is φ = 8874072.

The previous prime is 13311113. The next prime is 13311127. The reversal of 13311117 is 71111331.

13311117 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 only one way, i.e., 12595401 + 715716 = 3549^2 + 846^2 .

It is not a de Polignac number, because 13311117 - 22 = 13311113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13311117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311113) 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, 739498 + ... + 739515.

Almost surely, 213311117 is an apocalyptic number.

It is an amenable number.

13311117 is a deficient number, since it is larger than the sum of its proper divisors (5916065).

13311117 is a wasteful number, since it uses less digits than its factorization.

13311117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479019 (or 1479016 counting only the distinct ones).

The product of its digits is 63, while the sum is 18.

The square root of 13311117 is about 3648.4403517119. The cubic root of 13311117 is about 236.9944452044.

Adding to 13311117 its reverse (71111331), we get a palindrome (84422448).

The spelling of 13311117 in words is "thirteen million, three hundred eleven thousand, one hundred seventeen".

Divisors: 1 3 9 1479013 4437039 13311117