Base | Representation |
---|---|
bin | 11011011111111… |
… | …10100000100001 |
3 | 121002001210022021 |
4 | 31233332200201 |
5 | 433023234414 |
6 | 34520141441 |
7 | 5500516135 |
oct | 1557764041 |
9 | 532053267 |
10 | 230680609 |
11 | 109238835 |
12 | 65307881 |
13 | 38a3a003 |
14 | 228cb3c5 |
15 | 153b9c24 |
hex | dbfe821 |
230680609 has 2 divisors, whose sum is σ = 230680610. Its totient is φ = 230680608.
The previous prime is 230680523. The next prime is 230680627. The reversal of 230680609 is 906086032.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 212430625 + 18249984 = 14575^2 + 4272^2 .
It is a cyclic number.
It is not a de Polignac number, because 230680609 - 27 = 230680481 is a prime.
It is a super-2 number, since 2×2306806092 = 106427086737221762, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (230680669) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115340304 + 115340305.
It is an arithmetic number, because the mean of its divisors is an integer number (115340305).
Almost surely, 2230680609 is an apocalyptic number.
It is an amenable number.
230680609 is a deficient number, since it is larger than the sum of its proper divisors (1).
230680609 is an equidigital number, since it uses as much as digits as its factorization.
230680609 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15552, while the sum is 34.
The square root of 230680609 is about 15188.1733266381. The cubic root of 230680609 is about 613.2963261054.
The spelling of 230680609 in words is "two hundred thirty million, six hundred eighty thousand, six hundred nine".
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