Base | Representation |
---|---|
bin | 111101001100111011… |
… | …0101001011111010011 |
3 | 110120020121012220122011 |
4 | 1322121312221133103 |
5 | 4123132121234033 |
6 | 140213410323351 |
7 | 12331651523425 |
oct | 1723166513723 |
9 | 416217186564 |
10 | 131430258643 |
11 | 50814a55672 |
12 | 2157b889557 |
13 | c5172b8c18 |
14 | 650b416815 |
15 | 36436d3ccd |
hex | 1e99da97d3 |
131430258643 has 2 divisors, whose sum is σ = 131430258644. Its totient is φ = 131430258642.
The previous prime is 131430258623. The next prime is 131430258683. The reversal of 131430258643 is 346852034131.
It is a happy number.
It is an a-pointer prime, because the next prime (131430258683) can be obtained adding 131430258643 to its sum of digits (40).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 131430258643 - 225 = 131396704211 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131430258596 and 131430258605.
It is not a weakly prime, because it can be changed into another prime (131430258623) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65715129321 + 65715129322.
It is an arithmetic number, because the mean of its divisors is an integer number (65715129322).
Almost surely, 2131430258643 is an apocalyptic number.
131430258643 is a deficient number, since it is larger than the sum of its proper divisors (1).
131430258643 is an equidigital number, since it uses as much as digits as its factorization.
131430258643 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 207360, while the sum is 40.
The spelling of 131430258643 in words is "one hundred thirty-one billion, four hundred thirty million, two hundred fifty-eight thousand, six hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •