Base | Representation |
---|---|
bin | 11000101111001111… |
… | …00001111100001001 |
3 | 1021021120210211201012 |
4 | 30113213201330021 |
5 | 204144432443424 |
6 | 10033512533305 |
7 | 650055555131 |
oct | 142747417411 |
9 | 37246724635 |
10 | 13281140489 |
11 | 56a5948471 |
12 | 26a79b1235 |
13 | 13386c8516 |
14 | 8ddc2dac1 |
15 | 52ae87b0e |
hex | 3179e1f09 |
13281140489 has 2 divisors, whose sum is σ = 13281140490. Its totient is φ = 13281140488.
The previous prime is 13281140471. The next prime is 13281140513. The reversal of 13281140489 is 98404118231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6758155264 + 6522985225 = 82208^2 + 80765^2 .
It is a cyclic number.
It is not a de Polignac number, because 13281140489 - 216 = 13281074953 is a prime.
It is not a weakly prime, because it can be changed into another prime (13281140419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640570244 + 6640570245.
It is an arithmetic number, because the mean of its divisors is an integer number (6640570245).
Almost surely, 213281140489 is an apocalyptic number.
It is an amenable number.
13281140489 is a deficient number, since it is larger than the sum of its proper divisors (1).
13281140489 is an equidigital number, since it uses as much as digits as its factorization.
13281140489 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 55296, while the sum is 41.
The spelling of 13281140489 in words is "thirteen billion, two hundred eighty-one million, one hundred forty thousand, four hundred eighty-nine".
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