Base | Representation |
---|---|
bin | 110001101001… |
… | …111110011011 |
3 | 220111022221122 |
4 | 301221332123 |
5 | 11313020422 |
6 | 1142555455 |
7 | 215433254 |
oct | 61517633 |
9 | 26438848 |
10 | 13016987 |
11 | 7390945 |
12 | 4438b8b |
13 | 2909b79 |
14 | 1a2bb2b |
15 | 1221d42 |
hex | c69f9b |
13016987 has 2 divisors, whose sum is σ = 13016988. Its totient is φ = 13016986.
The previous prime is 13016963. The next prime is 13016999. The reversal of 13016987 is 78961031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13016987 - 26 = 13016923 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13016587) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6508493 + 6508494.
It is an arithmetic number, because the mean of its divisors is an integer number (6508494).
Almost surely, 213016987 is an apocalyptic number.
13016987 is a deficient number, since it is larger than the sum of its proper divisors (1).
13016987 is an equidigital number, since it uses as much as digits as its factorization.
13016987 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9072, while the sum is 35.
The square root of 13016987 is about 3607.9061794897. The cubic root of 13016987 is about 235.2358398941.
The spelling of 13016987 in words is "thirteen million, sixteen thousand, nine hundred eighty-seven".
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