Base | Representation |
---|---|
bin | 10000110110000111… |
… | …010011110100010011 |
3 | 1201200120022011021212 |
4 | 100312013103310103 |
5 | 244020431130102 |
6 | 12150455210335 |
7 | 1210142244446 |
oct | 206607236423 |
9 | 51616264255 |
10 | 18087755027 |
11 | 7742080081 |
12 | 36096769ab |
13 | 1923477734 |
14 | c3835165d |
15 | 70ce3ec52 |
hex | 4361d3d13 |
18087755027 has 2 divisors, whose sum is σ = 18087755028. Its totient is φ = 18087755026.
The previous prime is 18087755017. The next prime is 18087755029. The reversal of 18087755027 is 72055778081.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 18087755027 - 28 = 18087754771 is a prime.
Together with 18087755029, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (18087755029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9043877513 + 9043877514.
It is an arithmetic number, because the mean of its divisors is an integer number (9043877514).
Almost surely, 218087755027 is an apocalyptic number.
18087755027 is a deficient number, since it is larger than the sum of its proper divisors (1).
18087755027 is an equidigital number, since it uses as much as digits as its factorization.
18087755027 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1097600, while the sum is 50.
The spelling of 18087755027 in words is "eighteen billion, eighty-seven million, seven hundred fifty-five thousand, twenty-seven".
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