Base | Representation |
---|---|
bin | 1001100010101110… |
… | …01100010000111111 |
3 | 111020001001222202112 |
4 | 10301113030100333 |
5 | 40443010133211 |
6 | 2204210244235 |
7 | 240645614216 |
oct | 46127142077 |
9 | 14201058675 |
10 | 5123130431 |
11 | 21999677a1 |
12 | bab88667b |
13 | 638510633 |
14 | 36859407d |
15 | 1eeb7988b |
hex | 1315cc43f |
5123130431 has 2 divisors, whose sum is σ = 5123130432. Its totient is φ = 5123130430.
The previous prime is 5123130427. The next prime is 5123130433. The reversal of 5123130431 is 1340313215.
5123130431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 5123130431 - 22 = 5123130427 is a prime.
It is a super-2 number, since 2×51231304312 = 52492930826076491522, which contains 22 as substring.
It is a Sophie Germain prime.
Together with 5123130433, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 5123130397 and 5123130406.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5123130433) 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, 2561565215 + 2561565216.
It is an arithmetic number, because the mean of its divisors is an integer number (2561565216).
Almost surely, 25123130431 is an apocalyptic number.
5123130431 is a deficient number, since it is larger than the sum of its proper divisors (1).
5123130431 is an equidigital number, since it uses as much as digits as its factorization.
5123130431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1080, while the sum is 23.
The square root of 5123130431 is about 71576.0464890315. The cubic root of 5123130431 is about 1723.8989465614.
Adding to 5123130431 its reverse (1340313215), we get a palindrome (6463443646).
The spelling of 5123130431 in words is "five billion, one hundred twenty-three million, one hundred thirty thousand, four hundred thirty-one".
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