Base | Representation |
---|---|
bin | 11011011111101… |
… | …00111101011101 |
3 | 121001222210122211 |
4 | 31233310331131 |
5 | 433021012001 |
6 | 34515240421 |
7 | 5500264126 |
oct | 1557647535 |
9 | 531883584 |
10 | 230641501 |
11 | 109211412 |
12 | 652a9111 |
13 | 38a2527c |
14 | 228bb04d |
15 | 153ad351 |
hex | dbf4f5d |
230641501 has 2 divisors, whose sum is σ = 230641502. Its totient is φ = 230641500.
The previous prime is 230641471. The next prime is 230641571. The reversal of 230641501 is 105146032.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 162562500 + 68079001 = 12750^2 + 8251^2 .
It is a cyclic number.
It is not a de Polignac number, because 230641501 - 25 = 230641469 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230641571) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115320750 + 115320751.
It is an arithmetic number, because the mean of its divisors is an integer number (115320751).
Almost surely, 2230641501 is an apocalyptic number.
It is an amenable number.
230641501 is a deficient number, since it is larger than the sum of its proper divisors (1).
230641501 is an equidigital number, since it uses as much as digits as its factorization.
230641501 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 230641501 is about 15186.8858229724. The cubic root of 230641501 is about 613.2616661365.
Adding to 230641501 its reverse (105146032), we get a palindrome (335787533).
The spelling of 230641501 in words is "two hundred thirty million, six hundred forty-one thousand, five hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •