Base | Representation |
---|---|
bin | 11011011110010… |
… | …00011001100011 |
3 | 121001122112021202 |
4 | 31233020121203 |
5 | 432444141404 |
6 | 34511311415 |
7 | 5465604032 |
oct | 1557103143 |
9 | 531575252 |
10 | 230458979 |
11 | 1090a7273 |
12 | 6521b56b |
13 | 3899017a |
14 | 22870719 |
15 | 1537421e |
hex | dbc8663 |
230458979 has 2 divisors, whose sum is σ = 230458980. Its totient is φ = 230458978.
The previous prime is 230458951. The next prime is 230459041. The reversal of 230458979 is 979854032.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-230458979 is a prime.
It is a super-3 number, since 3×2304589793 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Sophie Germain prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (230458939) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115229489 + 115229490.
It is an arithmetic number, because the mean of its divisors is an integer number (115229490).
Almost surely, 2230458979 is an apocalyptic number.
230458979 is a deficient number, since it is larger than the sum of its proper divisors (1).
230458979 is an equidigital number, since it uses as much as digits as its factorization.
230458979 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 544320, while the sum is 47.
The square root of 230458979 is about 15180.8754358897. The cubic root of 230458979 is about 613.0998518269.
The spelling of 230458979 in words is "two hundred thirty million, four hundred fifty-eight thousand, nine hundred seventy-nine".
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