Base | Representation |
---|---|
bin | 11100010101110101… |
… | …000110100011101111 |
3 | 2220112210022122012101 |
4 | 130111311012203233 |
5 | 444310314404403 |
6 | 21551350115531 |
7 | 2125052225551 |
oct | 342565064357 |
9 | 86483278171 |
10 | 30431013103 |
11 | 119a6571607 |
12 | 5a9334bba7 |
13 | 2b3c77483a |
14 | 16897a34d1 |
15 | bd18b671d |
hex | 715d468ef |
30431013103 has 2 divisors, whose sum is σ = 30431013104. Its totient is φ = 30431013102.
The previous prime is 30431013077. The next prime is 30431013131. The reversal of 30431013103 is 30131013403.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30431013103 - 229 = 29894142191 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30431016103) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15215506551 + 15215506552.
It is an arithmetic number, because the mean of its divisors is an integer number (15215506552).
Almost surely, 230431013103 is an apocalyptic number.
30431013103 is a deficient number, since it is larger than the sum of its proper divisors (1).
30431013103 is an equidigital number, since it uses as much as digits as its factorization.
30431013103 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 30431013103 its reverse (30131013403), we get a palindrome (60562026506).
The spelling of 30431013103 in words is "thirty billion, four hundred thirty-one million, thirteen thousand, one hundred three".
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