Base | Representation |
---|---|
bin | 111101001001111101… |
… | …0100110001010000111 |
3 | 110112222122202021012202 |
4 | 1322103322212022013 |
5 | 4122431120132104 |
6 | 140155451105115 |
7 | 12326331636632 |
oct | 1722372461207 |
9 | 415878667182 |
10 | 131330630279 |
11 | 50773798382 |
12 | 2155244219b |
13 | c4cc775624 |
14 | 64dc0c0c19 |
15 | 3639aa451e |
hex | 1e93ea6287 |
131330630279 has 2 divisors, whose sum is σ = 131330630280. Its totient is φ = 131330630278.
The previous prime is 131330630161. The next prime is 131330630311. The reversal of 131330630279 is 972036033131.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131330630279 - 232 = 127035662983 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131330630479) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665315139 + 65665315140.
It is an arithmetic number, because the mean of its divisors is an integer number (65665315140).
Almost surely, 2131330630279 is an apocalyptic number.
131330630279 is a deficient number, since it is larger than the sum of its proper divisors (1).
131330630279 is an equidigital number, since it uses as much as digits as its factorization.
131330630279 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 61236, while the sum is 38.
The spelling of 131330630279 in words is "one hundred thirty-one billion, three hundred thirty million, six hundred thirty thousand, two hundred seventy-nine".
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