Base | Representation |
---|---|
bin | 11001110001101010… |
… | …00011111101010111 |
3 | 1022201102021022000201 |
4 | 30320311003331113 |
5 | 211320103221311 |
6 | 10205055321331 |
7 | 666632625265 |
oct | 147065037527 |
9 | 38642238021 |
10 | 13838335831 |
11 | 596141a591 |
12 | 2822520247 |
13 | 13c6c87ac8 |
14 | 953c33435 |
15 | 55ed4c9c1 |
hex | 338d43f57 |
13838335831 has 2 divisors, whose sum is σ = 13838335832. Its totient is φ = 13838335830.
The previous prime is 13838335829. The next prime is 13838335843. The reversal of 13838335831 is 13853383831.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13838335831 - 21 = 13838335829 is a prime.
It is a super-2 number, since 2×138383358312 (a number of 21 digits) contains 22 as substring.
Together with 13838335829, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13838335811) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6919167915 + 6919167916.
It is an arithmetic number, because the mean of its divisors is an integer number (6919167916).
Almost surely, 213838335831 is an apocalyptic number.
13838335831 is a deficient number, since it is larger than the sum of its proper divisors (1).
13838335831 is an equidigital number, since it uses as much as digits as its factorization.
13838335831 is an evil number, because the sum of its binary digits is even.
The product of its digits is 622080, while the sum is 46.
The spelling of 13838335831 in words is "thirteen billion, eight hundred thirty-eight million, three hundred thirty-five thousand, eight hundred thirty-one".
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