Base | Representation |
---|---|
bin | 11000111100001001… |
… | …00110000001011111 |
3 | 1021120010120010221222 |
4 | 30132010212001133 |
5 | 204410143011222 |
6 | 10052341443555 |
7 | 652542133514 |
oct | 143604460137 |
9 | 37503503858 |
10 | 13389422687 |
11 | 5750a86493 |
12 | 27181105bb |
13 | 1354c7ba24 |
14 | 91037930b |
15 | 535726542 |
hex | 31e12605f |
13389422687 has 2 divisors, whose sum is σ = 13389422688. Its totient is φ = 13389422686.
The previous prime is 13389422663. The next prime is 13389422719. The reversal of 13389422687 is 78622498331.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13389422687 - 224 = 13372645471 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13389422617) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694711343 + 6694711344.
It is an arithmetic number, because the mean of its divisors is an integer number (6694711344).
Almost surely, 213389422687 is an apocalyptic number.
13389422687 is a deficient number, since it is larger than the sum of its proper divisors (1).
13389422687 is an equidigital number, since it uses as much as digits as its factorization.
13389422687 is an evil number, because the sum of its binary digits is even.
The product of its digits is 3483648, while the sum is 53.
The spelling of 13389422687 in words is "thirteen billion, three hundred eighty-nine million, four hundred twenty-two thousand, six hundred eighty-seven".
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