Base | Representation |
---|---|
bin | 1111100001101… |
… | …01101010101001 |
3 | 100002002001010202 |
4 | 13300311222221 |
5 | 231320240431 |
6 | 20531321545 |
7 | 3141022622 |
oct | 760655251 |
9 | 302061122 |
10 | 130243241 |
11 | 67578747 |
12 | 377502b5 |
13 | 20ca240b |
14 | 13424a49 |
15 | b67a8cb |
hex | 7c35aa9 |
130243241 has 2 divisors, whose sum is σ = 130243242. Its totient is φ = 130243240.
The previous prime is 130243193. The next prime is 130243247. The reversal of 130243241 is 142342031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 81522841 + 48720400 = 9029^2 + 6980^2 .
It is a cyclic number.
It is not a de Polignac number, because 130243241 - 26 = 130243177 is a prime.
It is not a weakly prime, because it can be changed into another prime (130243247) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65121620 + 65121621.
It is an arithmetic number, because the mean of its divisors is an integer number (65121621).
Almost surely, 2130243241 is an apocalyptic number.
It is an amenable number.
130243241 is a deficient number, since it is larger than the sum of its proper divisors (1).
130243241 is an equidigital number, since it uses as much as digits as its factorization.
130243241 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 130243241 is about 11412.4160895053. The cubic root of 130243241 is about 506.8954562198.
Adding to 130243241 its reverse (142342031), we get a palindrome (272585272).
The spelling of 130243241 in words is "one hundred thirty million, two hundred forty-three thousand, two hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •