Base | Representation |
---|---|
bin | 11000101001010010… |
… | …00010001110001011 |
3 | 1021011002211202122101 |
4 | 30110221002032023 |
5 | 204044142000321 |
6 | 10024530334231 |
7 | 645611241322 |
oct | 142451021613 |
9 | 37132752571 |
10 | 13231203211 |
11 | 567a73a896 |
12 | 269312a377 |
13 | 132b262835 |
14 | 8d73510b9 |
15 | 5268c1791 |
hex | 314a4238b |
13231203211 has 2 divisors, whose sum is σ = 13231203212. Its totient is φ = 13231203210.
The previous prime is 13231203199. The next prime is 13231203239. The reversal of 13231203211 is 11230213231.
It is a weak prime.
It is an emirp because it is prime and its reverse (11230213231) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13231203211 is a prime.
It is not a weakly prime, because it can be changed into another prime (13231203511) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615601605 + 6615601606.
It is an arithmetic number, because the mean of its divisors is an integer number (6615601606).
Almost surely, 213231203211 is an apocalyptic number.
13231203211 is a deficient number, since it is larger than the sum of its proper divisors (1).
13231203211 is an equidigital number, since it uses as much as digits as its factorization.
13231203211 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 13231203211 its reverse (11230213231), we get a palindrome (24461416442).
The spelling of 13231203211 in words is "thirteen billion, two hundred thirty-one million, two hundred three thousand, two hundred eleven".
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