Base | Representation |
---|---|
bin | 110001111111… |
… | …100011110111 |
3 | 220122211020011 |
4 | 301333203313 |
5 | 11323333044 |
6 | 1144521051 |
7 | 216252106 |
oct | 61774367 |
9 | 26584204 |
10 | 13105399 |
11 | 744130a |
12 | 4480187 |
13 | 293b198 |
14 | 1a5203d |
15 | 123d134 |
hex | c7f8f7 |
13105399 has 2 divisors, whose sum is σ = 13105400. Its totient is φ = 13105398.
The previous prime is 13105387. The next prime is 13105409. The reversal of 13105399 is 99350131.
It is a strong prime.
It is an emirp because it is prime and its reverse (99350131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13105399 - 219 = 12581111 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13105399.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13105319) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552699 + 6552700.
It is an arithmetic number, because the mean of its divisors is an integer number (6552700).
Almost surely, 213105399 is an apocalyptic number.
13105399 is a deficient number, since it is larger than the sum of its proper divisors (1).
13105399 is an equidigital number, since it uses as much as digits as its factorization.
13105399 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3645, while the sum is 31.
The square root of 13105399 is about 3620.1379807958. The cubic root of 13105399 is about 235.7672163612.
The spelling of 13105399 in words is "thirteen million, one hundred five thousand, three hundred ninety-nine".
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