Base | Representation |
---|---|
bin | 11011100101100… |
… | …11010001110001 |
3 | 121010110101222200 |
4 | 31302303101301 |
5 | 433220433131 |
6 | 34544053413 |
7 | 5510021625 |
oct | 1562632161 |
9 | 533411880 |
10 | 231421041 |
11 | 1096a4065 |
12 | 65604269 |
13 | 38c39037 |
14 | 22a41185 |
15 | 154b42e6 |
hex | dcb3471 |
231421041 has 6 divisors (see below), whose sum is σ = 334274850. Its totient is φ = 154280688.
The previous prime is 231421039. The next prime is 231421079. The reversal of 231421041 is 140124132.
It can be written as a sum of positive squares in only one way, i.e., 123676641 + 107744400 = 11121^2 + 10380^2 .
It is not a de Polignac number, because 231421041 - 21 = 231421039 is a prime.
It is not an unprimeable number, because it can be changed into a prime (231421741) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12856716 + ... + 12856733.
It is an arithmetic number, because the mean of its divisors is an integer number (55712475).
Almost surely, 2231421041 is an apocalyptic number.
It is an amenable number.
231421041 is a deficient number, since it is larger than the sum of its proper divisors (102853809).
231421041 is a wasteful number, since it uses less digits than its factorization.
231421041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25713455 (or 25713452 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 231421041 is about 15212.5290796764. The cubic root of 231421041 is about 613.9518056086.
Adding to 231421041 its reverse (140124132), we get a palindrome (371545173).
The spelling of 231421041 in words is "two hundred thirty-one million, four hundred twenty-one thousand, forty-one".
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