Base | Representation |
---|---|
bin | 111101001101010010… |
… | …0110001001001000101 |
3 | 110120021102222010221211 |
4 | 1322122210301021011 |
5 | 4123143220123423 |
6 | 140214521411421 |
7 | 12332156346232 |
oct | 1723244611105 |
9 | 416242863854 |
10 | 131442348613 |
11 | 50820862a84 |
12 | 21583939b71 |
13 | c51995cb54 |
14 | 650cc82789 |
15 | 36447c110d |
hex | 1e9a931245 |
131442348613 has 2 divisors, whose sum is σ = 131442348614. Its totient is φ = 131442348612.
The previous prime is 131442348607. The next prime is 131442348641. The reversal of 131442348613 is 316843244131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 116484324804 + 14958023809 = 341298^2 + 122303^2 .
It is an emirp because it is prime and its reverse (316843244131) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131442348613 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131442348643) 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 as a sum of consecutive naturals, namely, 65721174306 + 65721174307.
It is an arithmetic number, because the mean of its divisors is an integer number (65721174307).
Almost surely, 2131442348613 is an apocalyptic number.
It is an amenable number.
131442348613 is a deficient number, since it is larger than the sum of its proper divisors (1).
131442348613 is an equidigital number, since it uses as much as digits as its factorization.
131442348613 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 165888, while the sum is 40.
The spelling of 131442348613 in words is "one hundred thirty-one billion, four hundred forty-two million, three hundred forty-eight thousand, six hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •