Base | Representation |
---|---|
bin | 11011011100111… |
… | …00110011001001 |
3 | 121001022110022110 |
4 | 31232130303021 |
5 | 432422433033 |
6 | 34503412533 |
7 | 5464231260 |
oct | 1556346311 |
9 | 531273273 |
10 | 230280393 |
11 | 108a95082 |
12 | 65154149 |
13 | 38929ab5 |
14 | 228255d7 |
15 | 1533b363 |
hex | db9ccc9 |
230280393 has 32 divisors (see below), whose sum is σ = 367589376. Its totient is φ = 125376768.
The previous prime is 230280373. The next prime is 230280397. The reversal of 230280393 is 393082032.
It is not a de Polignac number, because 230280393 - 28 = 230280137 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 230280393.
It is not an unprimeable number, because it can be changed into a prime (230280397) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147505 + ... + 149057.
It is an arithmetic number, because the mean of its divisors is an integer number (11487168).
Almost surely, 2230280393 is an apocalyptic number.
230280393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
230280393 is a deficient number, since it is larger than the sum of its proper divisors (137308983).
230280393 is a wasteful number, since it uses less digits than its factorization.
230280393 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1893.
The product of its (nonzero) digits is 7776, while the sum is 30.
The square root of 230280393 is about 15174.9923558465. The cubic root of 230280393 is about 612.9414442514.
The spelling of 230280393 in words is "two hundred thirty million, two hundred eighty thousand, three hundred ninety-three".
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