Base | Representation |
---|---|
bin | 11011011110101… |
… | …01101001011011 |
3 | 121001202021201112 |
4 | 31233111221123 |
5 | 433002410433 |
6 | 34512410535 |
7 | 5466221162 |
oct | 1557255133 |
9 | 531667645 |
10 | 230513243 |
11 | 109134014 |
12 | 65246a4b |
13 | 389aba8c |
14 | 228863d9 |
15 | 15385348 |
hex | dbd5a5b |
230513243 has 2 divisors, whose sum is σ = 230513244. Its totient is φ = 230513242.
The previous prime is 230513237. The next prime is 230513267. The reversal of 230513243 is 342315032.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 230513243 - 28 = 230512987 is a prime.
It is a Sophie Germain prime.
It is not a weakly prime, because it can be changed into another prime (230510243) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115256621 + 115256622.
It is an arithmetic number, because the mean of its divisors is an integer number (115256622).
Almost surely, 2230513243 is an apocalyptic number.
230513243 is a deficient number, since it is larger than the sum of its proper divisors (1).
230513243 is an equidigital number, since it uses as much as digits as its factorization.
230513243 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2160, while the sum is 23.
The square root of 230513243 is about 15182.6625794029. The cubic root of 230513243 is about 613.1479683285.
Adding to 230513243 its reverse (342315032), we get a palindrome (572828275).
The spelling of 230513243 in words is "two hundred thirty million, five hundred thirteen thousand, two hundred forty-three".
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