Base | Representation |
---|---|
bin | 11011011111100… |
… | …10001111110101 |
3 | 121001222020102021 |
4 | 31233302033311 |
5 | 433020133024 |
6 | 34515113141 |
7 | 5500216543 |
oct | 1557621765 |
9 | 531866367 |
10 | 230630389 |
11 | 109204030 |
12 | 652a27b1 |
13 | 38a201b2 |
14 | 228b6d93 |
15 | 153a9de4 |
hex | dbf23f5 |
230630389 has 8 divisors (see below), whose sum is σ = 251848800. Its totient is φ = 209454000.
The previous prime is 230630377. The next prime is 230630419. The reversal of 230630389 is 983036032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 230630389 - 215 = 230597621 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230630489) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 1587 + ... + 21535.
It is an arithmetic number, because the mean of its divisors is an integer number (31481100).
Almost surely, 2230630389 is an apocalyptic number.
It is an amenable number.
230630389 is a deficient number, since it is larger than the sum of its proper divisors (21218411).
230630389 is a wasteful number, since it uses less digits than its factorization.
230630389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21011.
The product of its (nonzero) digits is 23328, while the sum is 34.
The square root of 230630389 is about 15186.5199766108. The cubic root of 230630389 is about 613.2518172685.
The spelling of 230630389 in words is "two hundred thirty million, six hundred thirty thousand, three hundred eighty-nine".
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