Base | Representation |
---|---|
bin | 11100100101001010… |
… | …010100110010101011 |
3 | 2221012201022211211222 |
4 | 130211022110302223 |
5 | 1000322142002132 |
6 | 22033055212255 |
7 | 2134324455626 |
oct | 344512246253 |
9 | 87181284758 |
10 | 30688234667 |
11 | 12018787a12 |
12 | 5b4551708b |
13 | 2b80b4524c |
14 | 16b19dcdbd |
15 | be9275412 |
hex | 725294cab |
30688234667 has 2 divisors, whose sum is σ = 30688234668. Its totient is φ = 30688234666.
The previous prime is 30688234631. The next prime is 30688234697. The reversal of 30688234667 is 76643288603.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30688234667 - 210 = 30688233643 is a prime.
It is a super-3 number, since 3×306882346673 (a number of 32 digits) contains 333 as substring.
It is not a weakly prime, because it can be changed into another prime (30688234697) 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, 15344117333 + 15344117334.
It is an arithmetic number, because the mean of its divisors is an integer number (15344117334).
Almost surely, 230688234667 is an apocalyptic number.
30688234667 is a deficient number, since it is larger than the sum of its proper divisors (1).
30688234667 is an equidigital number, since it uses as much as digits as its factorization.
30688234667 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6967296, while the sum is 53.
The spelling of 30688234667 in words is "thirty billion, six hundred eighty-eight million, two hundred thirty-four thousand, six hundred sixty-seven".
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