Base | Representation |
---|---|
bin | 110010011110… |
… | …010001000000 |
3 | 220220012202021 |
4 | 302132101000 |
5 | 11341344133 |
6 | 1151331224 |
7 | 220314556 |
oct | 62362100 |
9 | 26805667 |
10 | 13231168 |
11 | 7517855 |
12 | 4520b14 |
13 | 29834c2 |
14 | 1a85bd6 |
15 | 126552d |
hex | c9e440 |
13231168 has 28 divisors (see below), whose sum is σ = 27802332. Its totient is φ = 6225920.
The previous prime is 13231159. The next prime is 13231171. The reversal of 13231168 is 86113231.
It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 6512704 = 2592^2 + 2552^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4993 + ... + 7168.
Almost surely, 213231168 is an apocalyptic number.
It is an amenable number.
13231168 is an abundant number, since it is smaller than the sum of its proper divisors (14571164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13231168 is a wasteful number, since it uses less digits than its factorization.
13231168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12190 (or 12180 counting only the distinct ones).
The product of its digits is 864, while the sum is 25.
The square root of 13231168 is about 3637.4672507117. The cubic root of 13231168 is about 236.5190147811.
Adding to 13231168 its reverse (86113231), we get a palindrome (99344399).
The spelling of 13231168 in words is "thirteen million, two hundred thirty-one thousand, one hundred sixty-eight".
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