Base | Representation |
---|---|
bin | 11000001111010011… |
… | …10101101100110001 |
3 | 1020120220211122200222 |
4 | 30013221311230301 |
5 | 203122401412012 |
6 | 5551144222425 |
7 | 640324212023 |
oct | 140751655461 |
9 | 36526748628 |
10 | 13013310257 |
11 | 5578746672 |
12 | 263216aa15 |
13 | 12c50821ac |
14 | 8b6432013 |
15 | 5126d0972 |
hex | 307a75b31 |
13013310257 has 2 divisors, whose sum is σ = 13013310258. Its totient is φ = 13013310256.
The previous prime is 13013310209. The next prime is 13013310319. The reversal of 13013310257 is 75201331031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12347876641 + 665433616 = 111121^2 + 25796^2 .
It is a cyclic number.
It is not a de Polignac number, because 13013310257 - 214 = 13013293873 is a prime.
It is not a weakly prime, because it can be changed into another prime (13013318257) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506655128 + 6506655129.
It is an arithmetic number, because the mean of its divisors is an integer number (6506655129).
Almost surely, 213013310257 is an apocalyptic number.
It is an amenable number.
13013310257 is a deficient number, since it is larger than the sum of its proper divisors (1).
13013310257 is an equidigital number, since it uses as much as digits as its factorization.
13013310257 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1890, while the sum is 26.
Adding to 13013310257 its reverse (75201331031), we get a palindrome (88214641288).
The spelling of 13013310257 in words is "thirteen billion, thirteen million, three hundred ten thousand, two hundred fifty-seven".
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