Base | Representation |
---|---|
bin | 111110011111… |
… | …110000001011 |
3 | 1010211100020022 |
4 | 332133300023 |
5 | 13143223422 |
6 | 1343051055 |
7 | 256152545 |
oct | 76376013 |
9 | 33740208 |
10 | 16382987 |
11 | 927a865 |
12 | 55a0a8b |
13 | 3517c9a |
14 | 2266695 |
15 | 1689342 |
hex | f9fc0b |
16382987 has 2 divisors, whose sum is σ = 16382988. Its totient is φ = 16382986.
The previous prime is 16382981. The next prime is 16383007. The reversal of 16382987 is 78928361.
It is a weak prime.
It is an emirp because it is prime and its reverse (78928361) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 16382987 - 212 = 16378891 is a prime.
It is not a weakly prime, because it can be changed into another prime (16382981) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8191493 + 8191494.
It is an arithmetic number, because the mean of its divisors is an integer number (8191494).
Almost surely, 216382987 is an apocalyptic number.
16382987 is a deficient number, since it is larger than the sum of its proper divisors (1).
16382987 is an equidigital number, since it uses as much as digits as its factorization.
16382987 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 145152, while the sum is 44.
The square root of 16382987 is about 4047.5902707661. The cubic root of 16382987 is about 253.9789337107.
The spelling of 16382987 in words is "sixteen million, three hundred eighty-two thousand, nine hundred eighty-seven".
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