Base | Representation |
---|---|
bin | 11011011111100… |
… | …01110111011101 |
3 | 121001222011021111 |
4 | 31233301313131 |
5 | 433020110304 |
6 | 34515102021 |
7 | 5500212154 |
oct | 1557616735 |
9 | 531864244 |
10 | 230628829 |
11 | 109202942 |
12 | 652a1911 |
13 | 38a1c582 |
14 | 228b659b |
15 | 153a9704 |
hex | dbf1ddd |
230628829 has 2 divisors, whose sum is σ = 230628830. Its totient is φ = 230628828.
The previous prime is 230628799. The next prime is 230628833. The reversal of 230628829 is 928826032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 164531929 + 66096900 = 12827^2 + 8130^2 .
It is a cyclic number.
It is not a de Polignac number, because 230628829 - 215 = 230596061 is a prime.
It is a super-2 number, since 2×2306288292 = 106379313531822482, which contains 22 as substring.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 230628791 and 230628800.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230628899) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115314414 + 115314415.
It is an arithmetic number, because the mean of its divisors is an integer number (115314415).
Almost surely, 2230628829 is an apocalyptic number.
It is an amenable number.
230628829 is a deficient number, since it is larger than the sum of its proper divisors (1).
230628829 is an equidigital number, since it uses as much as digits as its factorization.
230628829 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 82944, while the sum is 40.
The square root of 230628829 is about 15186.4686151850. The cubic root of 230628829 is about 613.2504345727.
The spelling of 230628829 in words is "two hundred thirty million, six hundred twenty-eight thousand, eight hundred twenty-nine".
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