Base | Representation |
---|---|
bin | 11100010011000110… |
… | …000100011010111011 |
3 | 2220102120222111020121 |
4 | 130103012010122323 |
5 | 444212043113042 |
6 | 21543030434111 |
7 | 2123654223232 |
oct | 342306043273 |
9 | 86376874217 |
10 | 30385129147 |
11 | 1198268228a |
12 | 5a7bb02937 |
13 | 2b330caa79 |
14 | 168365bb19 |
15 | bcc851367 |
hex | 7131846bb |
30385129147 has 2 divisors, whose sum is σ = 30385129148. Its totient is φ = 30385129146.
The previous prime is 30385129141. The next prime is 30385129157. The reversal of 30385129147 is 74192158303.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30385129147 - 211 = 30385127099 is a prime.
It is not a weakly prime, because it can be changed into another prime (30385129141) 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, 15192564573 + 15192564574.
It is an arithmetic number, because the mean of its divisors is an integer number (15192564574).
Almost surely, 230385129147 is an apocalyptic number.
30385129147 is a deficient number, since it is larger than the sum of its proper divisors (1).
30385129147 is an equidigital number, since it uses as much as digits as its factorization.
30385129147 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 181440, while the sum is 43.
The spelling of 30385129147 in words is "thirty billion, three hundred eighty-five million, one hundred twenty-nine thousand, one hundred forty-seven".
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