Base | Representation |
---|---|
bin | 10001100010011010… |
… | …000010111101001111 |
3 | 1210121100121000110002 |
4 | 101202122002331033 |
5 | 302031200123312 |
6 | 12352322434515 |
7 | 1234434463511 |
oct | 214232027517 |
9 | 53540530402 |
10 | 18830864207 |
11 | 7a93593aa1 |
12 | 3796502a3b |
13 | 1a113cb8cc |
14 | ca8d0bbb1 |
15 | 7532ca4c2 |
hex | 462682f4f |
18830864207 has 2 divisors, whose sum is σ = 18830864208. Its totient is φ = 18830864206.
The previous prime is 18830864197. The next prime is 18830864233. The reversal of 18830864207 is 70246803881.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 18830864207 - 226 = 18763755343 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18830861207) 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, 9415432103 + 9415432104.
It is an arithmetic number, because the mean of its divisors is an integer number (9415432104).
Almost surely, 218830864207 is an apocalyptic number.
18830864207 is a deficient number, since it is larger than the sum of its proper divisors (1).
18830864207 is an equidigital number, since it uses as much as digits as its factorization.
18830864207 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 516096, while the sum is 47.
The spelling of 18830864207 in words is "eighteen billion, eight hundred thirty million, eight hundred sixty-four thousand, two hundred seven".
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