Base | Representation |
---|---|
bin | 11011011100100… |
… | …00101111111001 |
3 | 121001012221121022 |
4 | 31232100233321 |
5 | 432414343113 |
6 | 34502352225 |
7 | 5463634334 |
oct | 1556205771 |
9 | 531187538 |
10 | 230231033 |
11 | 108a60a8a |
12 | 6512b675 |
13 | 389104a6 |
14 | 2281161b |
15 | 1532b908 |
hex | db90bf9 |
230231033 has 4 divisors (see below), whose sum is σ = 230355828. Its totient is φ = 230106240.
The previous prime is 230231021. The next prime is 230231047. The reversal of 230231033 is 330132032.
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 11102224 + 219128809 = 3332^2 + 14803^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-230231033 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230231003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59588 + ... + 63333.
It is an arithmetic number, because the mean of its divisors is an integer number (57588957).
Almost surely, 2230231033 is an apocalyptic number.
It is an amenable number.
230231033 is a deficient number, since it is larger than the sum of its proper divisors (124795).
230231033 is a wasteful number, since it uses less digits than its factorization.
230231033 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124794.
The product of its (nonzero) digits is 324, while the sum is 17.
The square root of 230231033 is about 15173.3659087231. The cubic root of 230231033 is about 612.8976469901.
Adding to 230231033 its reverse (330132032), we get a palindrome (560363065).
Subtracting 230231033 from its reverse (330132032), we obtain a palindrome (99900999).
The spelling of 230231033 in words is "two hundred thirty million, two hundred thirty-one thousand, thirty-three".
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