Base | Representation |
---|---|
bin | 11011011110010… |
… | …00011111111011 |
3 | 121001122112211212 |
4 | 31233020133323 |
5 | 432444200022 |
6 | 34511313335 |
7 | 5465605154 |
oct | 1557103773 |
9 | 531575755 |
10 | 230459387 |
11 | 1090a7604 |
12 | 6521b84b |
13 | 38990402 |
14 | 2287092b |
15 | 153743e2 |
hex | dbc87fb |
230459387 has 2 divisors, whose sum is σ = 230459388. Its totient is φ = 230459386.
The previous prime is 230459357. The next prime is 230459393. The reversal of 230459387 is 783954032.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 230459387 - 26 = 230459323 is a prime.
It is a super-2 number, since 2×2304593872 = 106223058112831538, which contains 22 as substring.
It is a Chen prime.
It is equal to p12666398 and since 230459387 and 12666398 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (230459357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115229693 + 115229694.
It is an arithmetic number, because the mean of its divisors is an integer number (115229694).
Almost surely, 2230459387 is an apocalyptic number.
230459387 is a deficient number, since it is larger than the sum of its proper divisors (1).
230459387 is an equidigital number, since it uses as much as digits as its factorization.
230459387 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 41.
The square root of 230459387 is about 15180.8888738440. Note that the first 4 decimals coincide. The cubic root of 230459387 is about 613.1002136333.
The spelling of 230459387 in words is "two hundred thirty million, four hundred fifty-nine thousand, three hundred eighty-seven".
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