Base | Representation |
---|---|
bin | 110010000010… |
… | …101010000111 |
3 | 220200110122002 |
4 | 302002222013 |
5 | 11324234322 |
6 | 1145055515 |
7 | 216334103 |
oct | 62025207 |
9 | 26613562 |
10 | 13118087 |
11 | 744a8a4 |
12 | 448759b |
13 | 2943ba8 |
14 | 1a56903 |
15 | 1241c92 |
hex | c82a87 |
13118087 has 2 divisors, whose sum is σ = 13118088. Its totient is φ = 13118086.
The previous prime is 13118069. The next prime is 13118089. The reversal of 13118087 is 78081131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13118087 - 26 = 13118023 is a prime.
Together with 13118089, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13118089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6559043 + 6559044.
It is an arithmetic number, because the mean of its divisors is an integer number (6559044).
Almost surely, 213118087 is an apocalyptic number.
13118087 is a deficient number, since it is larger than the sum of its proper divisors (1).
13118087 is an equidigital number, since it uses as much as digits as its factorization.
13118087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1344, while the sum is 29.
The square root of 13118087 is about 3621.8899762417. The cubic root of 13118087 is about 235.8432778780.
The spelling of 13118087 in words is "thirteen million, one hundred eighteen thousand, eighty-seven".
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