Base | Representation |
---|---|
bin | 110100101000… |
… | …001010010011 |
3 | 221221220112111 |
4 | 310220022103 |
5 | 12012432422 |
6 | 1211410151 |
7 | 225156352 |
oct | 64501223 |
9 | 27856474 |
10 | 13795987 |
11 | 7873147 |
12 | 4753957 |
13 | 2b2060a |
14 | 1b91999 |
15 | 1327a77 |
hex | d28293 |
13795987 has 2 divisors, whose sum is σ = 13795988. Its totient is φ = 13795986.
The previous prime is 13795937. The next prime is 13796009. The reversal of 13795987 is 78959731.
It is a strong prime.
It is an emirp because it is prime and its reverse (78959731) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13795987 - 215 = 13763219 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13795987.
It is not a weakly prime, because it can be changed into another prime (13795907) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6897993 + 6897994.
It is an arithmetic number, because the mean of its divisors is an integer number (6897994).
Almost surely, 213795987 is an apocalyptic number.
13795987 is a deficient number, since it is larger than the sum of its proper divisors (1).
13795987 is an equidigital number, since it uses as much as digits as its factorization.
13795987 is an evil number, because the sum of its binary digits is even.
The product of its digits is 476280, while the sum is 49.
The square root of 13795987 is about 3714.2949532852. The cubic root of 13795987 is about 239.8377781064.
The spelling of 13795987 in words is "thirteen million, seven hundred ninety-five thousand, nine hundred eighty-seven".
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