Base | Representation |
---|---|
bin | 11011011111100… |
… | …10001101011101 |
3 | 121001222020012122 |
4 | 31233302031131 |
5 | 433020131422 |
6 | 34515112325 |
7 | 5500216235 |
oct | 1557621535 |
9 | 531866178 |
10 | 230630237 |
11 | 109203a02 |
12 | 652a26a5 |
13 | 38a200c6 |
14 | 228b6cc5 |
15 | 153a9d42 |
hex | dbf235d |
230630237 has 2 divisors, whose sum is σ = 230630238. Its totient is φ = 230630236.
The previous prime is 230630221. The next prime is 230630249. The reversal of 230630237 is 732036032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 195832036 + 34798201 = 13994^2 + 5899^2 .
It is a cyclic number.
It is not a de Polignac number, because 230630237 - 24 = 230630221 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230630137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115315118 + 115315119.
It is an arithmetic number, because the mean of its divisors is an integer number (115315119).
Almost surely, 2230630237 is an apocalyptic number.
It is an amenable number.
230630237 is a deficient number, since it is larger than the sum of its proper divisors (1).
230630237 is an equidigital number, since it uses as much as digits as its factorization.
230630237 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4536, while the sum is 26.
The square root of 230630237 is about 15186.5149721719. The cubic root of 230630237 is about 613.2516825446.
Adding to 230630237 its reverse (732036032), we get a palindrome (962666269).
The spelling of 230630237 in words is "two hundred thirty million, six hundred thirty thousand, two hundred thirty-seven".
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