Base | Representation |
---|---|
bin | 111110100000… |
… | …111111000111 |
3 | 1010211121011102 |
4 | 332200333013 |
5 | 13143404124 |
6 | 1343130315 |
7 | 256203353 |
oct | 76407707 |
9 | 33747142 |
10 | 16388039 |
11 | 9283638 |
12 | 55a399b |
13 | 351a385 |
14 | 2268463 |
15 | 168aaae |
hex | fa0fc7 |
16388039 has 2 divisors, whose sum is σ = 16388040. Its totient is φ = 16388038.
The previous prime is 16388023. The next prime is 16388059. The reversal of 16388039 is 93088361.
It is a weak prime.
It is an emirp because it is prime and its reverse (93088361) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 16388039 - 24 = 16388023 is a prime.
It is a plaindrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 16387993 and 16388011.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (16388059) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8194019 + 8194020.
It is an arithmetic number, because the mean of its divisors is an integer number (8194020).
Almost surely, 216388039 is an apocalyptic number.
16388039 is a deficient number, since it is larger than the sum of its proper divisors (1).
16388039 is an equidigital number, since it uses as much as digits as its factorization.
16388039 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 16388039 is about 4048.2142976873. The cubic root of 16388039 is about 254.0050374102.
The spelling of 16388039 in words is "sixteen million, three hundred eighty-eight thousand, thirty-nine".
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