Base | Representation |
---|---|
bin | 11000111101100100… |
… | …11010000110111101 |
3 | 1021120222011022100012 |
4 | 30132302122012331 |
5 | 204421231320014 |
6 | 10053451113005 |
7 | 653046203543 |
oct | 143662320675 |
9 | 37528138305 |
10 | 13401432509 |
11 | 5757839663 |
12 | 2720142765 |
13 | 13575c532a |
14 | 911bc3d93 |
15 | 5367e9c3e |
hex | 31ec9a1bd |
13401432509 has 2 divisors, whose sum is σ = 13401432510. Its totient is φ = 13401432508.
The previous prime is 13401432497. The next prime is 13401432593. The reversal of 13401432509 is 90523410431.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12679435609 + 721996900 = 112603^2 + 26870^2 .
It is an emirp because it is prime and its reverse (90523410431) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13401432509 - 24 = 13401432493 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13401432599) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700716254 + 6700716255.
It is an arithmetic number, because the mean of its divisors is an integer number (6700716255).
Almost surely, 213401432509 is an apocalyptic number.
It is an amenable number.
13401432509 is a deficient number, since it is larger than the sum of its proper divisors (1).
13401432509 is an equidigital number, since it uses as much as digits as its factorization.
13401432509 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12960, while the sum is 32.
The spelling of 13401432509 in words is "thirteen billion, four hundred one million, four hundred thirty-two thousand, five hundred nine".
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