Base | Representation |
---|---|
bin | 1101101101011… |
… | …00001110100111 |
3 | 22000101121122211 |
4 | 12312230032213 |
5 | 213420001411 |
6 | 15224504251 |
7 | 2564325433 |
oct | 666541647 |
9 | 260347584 |
10 | 115000231 |
11 | 59a07415 |
12 | 3261b087 |
13 | 1aa96298 |
14 | 113b79c3 |
15 | a169221 |
hex | 6dac3a7 |
115000231 has 2 divisors, whose sum is σ = 115000232. Its totient is φ = 115000230.
The previous prime is 115000229. The next prime is 115000247. The reversal of 115000231 is 132000511.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 115000231 - 21 = 115000229 is a prime.
It is a super-2 number, since 2×1150002312 = 26450106260106722, which contains 22 as substring.
Together with 115000229, it forms a pair of twin primes.
It is a Chen prime.
115000231 is a modest number, since divided by 231 gives 115 as remainder.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (115000261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57500115 + 57500116.
It is an arithmetic number, because the mean of its divisors is an integer number (57500116).
Almost surely, 2115000231 is an apocalyptic number.
115000231 is a deficient number, since it is larger than the sum of its proper divisors (1).
115000231 is an equidigital number, since it uses as much as digits as its factorization.
115000231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 115000231 is about 10723.8160651887. The cubic root of 115000231 is about 486.2947387150.
Adding to 115000231 its reverse (132000511), we get a palindrome (247000742).
The spelling of 115000231 in words is "one hundred fifteen million, two hundred thirty-one", and thus it is an aban number.
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