Base | Representation |
---|---|
bin | 11000100101101101… |
… | …00111111110011011 |
3 | 1021002000102000110112 |
4 | 30102312213332123 |
5 | 204014002230131 |
6 | 10021535434535 |
7 | 645065305322 |
oct | 142266477633 |
9 | 37060360415 |
10 | 13201211291 |
11 | 5664815484 |
12 | 2685085a4b |
13 | 1324c91438 |
14 | 8d33850b9 |
15 | 523e4a02b |
hex | 312da7f9b |
13201211291 has 2 divisors, whose sum is σ = 13201211292. Its totient is φ = 13201211290.
The previous prime is 13201211203. The next prime is 13201211293. The reversal of 13201211291 is 19211210231.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13201211291 is a prime.
Together with 13201211293, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13201211293) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600605645 + 6600605646.
It is an arithmetic number, because the mean of its divisors is an integer number (6600605646).
Almost surely, 213201211291 is an apocalyptic number.
13201211291 is a deficient number, since it is larger than the sum of its proper divisors (1).
13201211291 is an equidigital number, since it uses as much as digits as its factorization.
13201211291 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 23.
The spelling of 13201211291 in words is "thirteen billion, two hundred one million, two hundred eleven thousand, two hundred ninety-one".
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