Base | Representation |
---|---|
bin | 11011011111100… |
… | …11110001111001 |
3 | 121001222120000201 |
4 | 31233303301321 |
5 | 433020333130 |
6 | 34515202201 |
7 | 5500244050 |
oct | 1557636171 |
9 | 531876021 |
10 | 230636665 |
11 | 109208816 |
12 | 652a6361 |
13 | 38a22ccc |
14 | 228b9397 |
15 | 153abbca |
hex | dbf3c79 |
230636665 has 16 divisors (see below), whose sum is σ = 320116608. Its totient is φ = 156243456.
The previous prime is 230636641. The next prime is 230636701. The reversal of 230636665 is 566636032.
It is a cyclic number.
It is not a de Polignac number, because 230636665 - 27 = 230636537 is a prime.
It is an unprimeable number.
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 in 15 ways as a sum of consecutive naturals, for example, 36792 + ... + 42601.
It is an arithmetic number, because the mean of its divisors is an integer number (20007288).
Almost surely, 2230636665 is an apocalyptic number.
It is an amenable number.
230636665 is a deficient number, since it is larger than the sum of its proper divisors (89479943).
230636665 is an equidigital number, since it uses as much as digits as its factorization.
230636665 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79488.
The product of its (nonzero) digits is 116640, while the sum is 37.
The square root of 230636665 is about 15186.7266058226. The cubic root of 230636665 is about 613.2573798969.
The spelling of 230636665 in words is "two hundred thirty million, six hundred thirty-six thousand, six hundred sixty-five".
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