Base | Representation |
---|---|
bin | 11011011111101… |
… | …01101000010101 |
3 | 121001222221102110 |
4 | 31233311220111 |
5 | 433021103440 |
6 | 34515301233 |
7 | 5500305126 |
oct | 1557655025 |
9 | 531887373 |
10 | 230644245 |
11 | 109213487 |
12 | 652aa819 |
13 | 38a265b0 |
14 | 228bc04d |
15 | 153ae080 |
hex | dbf5a15 |
230644245 has 16 divisors (see below), whose sum is σ = 397418112. Its totient is φ = 113547840.
The previous prime is 230644243. The next prime is 230644261. The reversal of 230644245 is 542446032.
It is not a de Polignac number, because 230644245 - 21 = 230644243 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230644243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591201 + ... + 591590.
It is an arithmetic number, because the mean of its divisors is an integer number (24838632).
Almost surely, 2230644245 is an apocalyptic number.
It is an amenable number.
230644245 is a deficient number, since it is larger than the sum of its proper divisors (166773867).
230644245 is a wasteful number, since it uses less digits than its factorization.
230644245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1182812.
The product of its (nonzero) digits is 23040, while the sum is 30.
The square root of 230644245 is about 15186.9761638056. The cubic root of 230644245 is about 613.2640981696.
The spelling of 230644245 in words is "two hundred thirty million, six hundred forty-four thousand, two hundred forty-five".
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