Base | Representation |
---|---|
bin | 11011011100010… |
… | …11001000011111 |
3 | 121001011210001101 |
4 | 31232023020133 |
5 | 432413124111 |
6 | 34502053531 |
7 | 5463510304 |
oct | 1556131037 |
9 | 531153041 |
10 | 230208031 |
11 | 108a45779 |
12 | 6511a2a7 |
13 | 38902b91 |
14 | 228070ab |
15 | 15324bc1 |
hex | db8b21f |
230208031 has 2 divisors, whose sum is σ = 230208032. Its totient is φ = 230208030.
The previous prime is 230207983. The next prime is 230208059. The reversal of 230208031 is 130802032.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 230208031 - 227 = 95990303 is a prime.
It is a super-2 number, since 2×2302080312 = 105991475073793922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230208131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115104015 + 115104016.
It is an arithmetic number, because the mean of its divisors is an integer number (115104016).
Almost surely, 2230208031 is an apocalyptic number.
230208031 is a deficient number, since it is larger than the sum of its proper divisors (1).
230208031 is an equidigital number, since it uses as much as digits as its factorization.
230208031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 230208031 is about 15172.6079169008. The cubic root of 230208031 is about 612.8772351151.
It can be divided in two parts, 23020803 and 1, that added together give a square (23020804 = 47982).
The spelling of 230208031 in words is "two hundred thirty million, two hundred eight thousand, thirty-one".
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