Base | Representation |
---|---|
bin | 11011011101000… |
… | …11011010100001 |
3 | 121001100211111000 |
4 | 31232203122201 |
5 | 432424314424 |
6 | 34504142213 |
7 | 5464403256 |
oct | 1556433241 |
9 | 531324430 |
10 | 230307489 |
11 | 109003475 |
12 | 65167969 |
13 | 38939229 |
14 | 2283142d |
15 | 153443c9 |
hex | dba36a1 |
230307489 has 16 divisors (see below), whose sum is σ = 341587840. Its totient is φ = 153362160.
The previous prime is 230307443. The next prime is 230307509. The reversal of 230307489 is 984703032.
It is not a de Polignac number, because 230307489 - 215 = 230274721 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230307439) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21699 + ... + 30519.
It is an arithmetic number, because the mean of its divisors is an integer number (21349240).
Almost surely, 2230307489 is an apocalyptic number.
It is an amenable number.
230307489 is a deficient number, since it is larger than the sum of its proper divisors (111280351).
230307489 is an equidigital number, since it uses as much as digits as its factorization.
230307489 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9797 (or 9791 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 230307489 is about 15175.8851142199. The cubic root of 230307489 is about 612.9654839446.
The spelling of 230307489 in words is "two hundred thirty million, three hundred seven thousand, four hundred eighty-nine".
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