Base | Representation |
---|---|
bin | 11011100001010… |
… | …01111000001001 |
3 | 121002101210222112 |
4 | 31300221320021 |
5 | 433044430444 |
6 | 34524032105 |
7 | 5502156056 |
oct | 1560517011 |
9 | 532353875 |
10 | 230858249 |
11 | 10934a246 |
12 | 65392635 |
13 | 38a9cb1b |
14 | 2293602d |
15 | 1540269e |
hex | dc29e09 |
230858249 has 8 divisors (see below), whose sum is σ = 250400808. Its totient is φ = 211978240.
The previous prime is 230858231. The next prime is 230858311. The reversal of 230858249 is 942858032.
It can be written as a sum of positive squares in 4 ways, for example, as 1123600 + 229734649 = 1060^2 + 15157^2 .
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 230858249 - 28 = 230857993 is a prime.
It is a super-2 number, since 2×2308582492 = 106591062262692002, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230858149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164912 + ... + 166305.
It is an arithmetic number, because the mean of its divisors is an integer number (31300101).
Almost surely, 2230858249 is an apocalyptic number.
It is an amenable number.
230858249 is a deficient number, since it is larger than the sum of its proper divisors (19542559).
230858249 is a wasteful number, since it uses less digits than its factorization.
230858249 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 331275.
The product of its (nonzero) digits is 138240, while the sum is 41.
The square root of 230858249 is about 15194.0201724231. The cubic root of 230858249 is about 613.4537125549.
The spelling of 230858249 in words is "two hundred thirty million, eight hundred fifty-eight thousand, two hundred forty-nine".
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