Base | Representation |
---|---|
bin | 11011011101110… |
… | …11001111110001 |
3 | 121001112210101102 |
4 | 31232323033301 |
5 | 432440430410 |
6 | 34510214145 |
7 | 5465261000 |
oct | 1556731761 |
9 | 531483342 |
10 | 230405105 |
11 | 10906a847 |
12 | 651b4355 |
13 | 389717a8 |
14 | 22858c37 |
15 | 153632a5 |
hex | dbbb3f1 |
230405105 has 32 divisors (see below), whose sum is σ = 331238400. Its totient is φ = 153679680.
The previous prime is 230405081. The next prime is 230405141. The reversal of 230405105 is 501504032.
It is not a de Polignac number, because 230405105 - 210 = 230404081 is a prime.
It is a super-2 number, since 2×2304051052 = 106173024820122050, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61640 + ... + 65270.
It is an arithmetic number, because the mean of its divisors is an integer number (10351200).
Almost surely, 2230405105 is an apocalyptic number.
It is an amenable number.
230405105 is a deficient number, since it is larger than the sum of its proper divisors (100833295).
230405105 is an equidigital number, since it uses as much as digits as its factorization.
230405105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3694 (or 3680 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 20.
The square root of 230405105 is about 15179.1009285794. The cubic root of 230405105 is about 613.0520736704.
Adding to 230405105 its reverse (501504032), we get a palindrome (731909137).
The spelling of 230405105 in words is "two hundred thirty million, four hundred five thousand, one hundred five".
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