Base | Representation |
---|---|
bin | 11000101001011001… |
… | …00000011001001111 |
3 | 1021011011112222221211 |
4 | 30110230200121033 |
5 | 204044410110411 |
6 | 10025002035251 |
7 | 645622051411 |
oct | 142454403117 |
9 | 37134488854 |
10 | 13232113231 |
11 | 5680201577 |
12 | 26934a8b27 |
13 | 132b4c0acc |
14 | 8d750a9b1 |
15 | 526a01221 |
hex | 314b2064f |
13232113231 has 2 divisors, whose sum is σ = 13232113232. Its totient is φ = 13232113230.
The previous prime is 13232113199. The next prime is 13232113259. The reversal of 13232113231 is 13231123231.
It is a strong prime.
It is an emirp because it is prime and its reverse (13231123231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13232113231 - 25 = 13232113199 is a prime.
It is a super-2 number, since 2×132321132312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13232113291) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6616056615 + 6616056616.
It is an arithmetic number, because the mean of its divisors is an integer number (6616056616).
Almost surely, 213232113231 is an apocalyptic number.
13232113231 is a deficient number, since it is larger than the sum of its proper divisors (1).
13232113231 is an equidigital number, since it uses as much as digits as its factorization.
13232113231 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 648, while the sum is 22.
Adding to 13232113231 its reverse (13231123231), we get a palindrome (26463236462).
The spelling of 13232113231 in words is "thirteen billion, two hundred thirty-two million, one hundred thirteen thousand, two hundred thirty-one".
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