Base | Representation |
---|---|
bin | 11100001000100100… |
… | …101111000010101011 |
3 | 2212222021211211101102 |
4 | 130020210233002223 |
5 | 443331401244132 |
6 | 21513323312015 |
7 | 2116412010353 |
oct | 341044570253 |
9 | 85867754342 |
10 | 30208618667 |
11 | 118a1a83357 |
12 | 5a3097b60b |
13 | 2b056792b6 |
14 | 1668031b63 |
15 | bbc0d6c62 |
hex | 70892f0ab |
30208618667 has 2 divisors, whose sum is σ = 30208618668. Its totient is φ = 30208618666.
The previous prime is 30208618621. The next prime is 30208618721. The reversal of 30208618667 is 76681680203.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30208618667 - 210 = 30208617643 is a prime.
It is not a weakly prime, because it can be changed into another prime (30208618607) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104309333 + 15104309334.
It is an arithmetic number, because the mean of its divisors is an integer number (15104309334).
Almost surely, 230208618667 is an apocalyptic number.
30208618667 is a deficient number, since it is larger than the sum of its proper divisors (1).
30208618667 is an equidigital number, since it uses as much as digits as its factorization.
30208618667 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 580608, while the sum is 47.
The spelling of 30208618667 in words is "thirty billion, two hundred eight million, six hundred eighteen thousand, six hundred sixty-seven".
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