Base | Representation |
---|---|
bin | 11011011010111… |
… | …11110000001001 |
3 | 121000211202022102 |
4 | 31231133300021 |
5 | 432341432340 |
6 | 34454203145 |
7 | 5462140256 |
oct | 1555376011 |
9 | 530752272 |
10 | 230030345 |
11 | 108934226 |
12 | 650534b5 |
13 | 3887003c |
14 | 2279c42d |
15 | 152dc215 |
hex | db5fc09 |
230030345 has 4 divisors (see below), whose sum is σ = 276036420. Its totient is φ = 184024272.
The previous prime is 230030341. The next prime is 230030387. The reversal of 230030345 is 543030032.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 115369081 + 114661264 = 10741^2 + 10708^2 .
It is a cyclic number.
It is not a de Polignac number, because 230030345 - 22 = 230030341 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (230030341) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23003030 + ... + 23003039.
It is an arithmetic number, because the mean of its divisors is an integer number (69009105).
Almost surely, 2230030345 is an apocalyptic number.
It is an amenable number.
230030345 is a deficient number, since it is larger than the sum of its proper divisors (46006075).
230030345 is an equidigital number, since it uses as much as digits as its factorization.
230030345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46006074.
The product of its (nonzero) digits is 1080, while the sum is 20.
The square root of 230030345 is about 15166.7513001302. The cubic root of 230030345 is about 612.7195114915.
Adding to 230030345 its reverse (543030032), we get a palindrome (773060377).
The spelling of 230030345 in words is "two hundred thirty million, thirty thousand, three hundred forty-five".
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