Base | Representation |
---|---|
bin | 111101111111… |
… | …111001000111 |
3 | 1010120201012222 |
4 | 331333321013 |
5 | 13130034422 |
6 | 1340202555 |
7 | 255100226 |
oct | 75777107 |
9 | 33521188 |
10 | 16252487 |
11 | 91a0809 |
12 | 553945b |
13 | 34a0774 |
14 | 2230cbd |
15 | 1660842 |
hex | f7fe47 |
16252487 has 2 divisors, whose sum is σ = 16252488. Its totient is φ = 16252486.
The previous prime is 16252477. The next prime is 16252507. The reversal of 16252487 is 78425261.
It is a weak prime.
It is an emirp because it is prime and its reverse (78425261) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 16252487 - 24 = 16252471 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (16252427) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126243 + 8126244.
It is an arithmetic number, because the mean of its divisors is an integer number (8126244).
Almost surely, 216252487 is an apocalyptic number.
16252487 is a deficient number, since it is larger than the sum of its proper divisors (1).
16252487 is an equidigital number, since it uses as much as digits as its factorization.
16252487 is an evil number, because the sum of its binary digits is even.
The product of its digits is 26880, while the sum is 35.
The square root of 16252487 is about 4031.4373367324. The cubic root of 16252487 is about 253.3027719751.
The spelling of 16252487 in words is "sixteen million, two hundred fifty-two thousand, four hundred eighty-seven".
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