Base | Representation |
---|---|
bin | 11011011110111… |
… | …00001100001111 |
3 | 121001210122111021 |
4 | 31233130030033 |
5 | 433004240142 |
6 | 34513135011 |
7 | 5466362263 |
oct | 1557341417 |
9 | 531718437 |
10 | 230540047 |
11 | 109152171 |
12 | 6525a467 |
13 | 389bb03a |
14 | 228920a3 |
15 | 1538d267 |
hex | dbdc30f |
230540047 has 2 divisors, whose sum is σ = 230540048. Its totient is φ = 230540046.
The previous prime is 230540033. The next prime is 230540069. The reversal of 230540047 is 740045032.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 230540047 - 215 = 230507279 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230540447) 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, 115270023 + 115270024.
It is an arithmetic number, because the mean of its divisors is an integer number (115270024).
Almost surely, 2230540047 is an apocalyptic number.
230540047 is a deficient number, since it is larger than the sum of its proper divisors (1).
230540047 is an equidigital number, since it uses as much as digits as its factorization.
230540047 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3360, while the sum is 25.
The square root of 230540047 is about 15183.5452711150. The cubic root of 230540047 is about 613.1717329519.
Adding to 230540047 its reverse (740045032), we get a palindrome (970585079).
The spelling of 230540047 in words is "two hundred thirty million, five hundred forty thousand, forty-seven".
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