Base | Representation |
---|---|
bin | 111101001001000111… |
… | …0001110100100000111 |
3 | 110112220200021222111111 |
4 | 1322102032032210013 |
5 | 4122401332101322 |
6 | 140152554145451 |
7 | 12325535321131 |
oct | 1722216164407 |
9 | 415820258444 |
10 | 131302222087 |
11 | 50759754933 |
12 | 21544a22287 |
13 | c4c690a04a |
14 | 64d8408051 |
15 | 3637342177 |
hex | 1e9238e907 |
131302222087 has 2 divisors, whose sum is σ = 131302222088. Its totient is φ = 131302222086.
The previous prime is 131302222027. The next prime is 131302222151. The reversal of 131302222087 is 780222203131.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 131302222087 - 219 = 131301697799 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131302222027) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651111043 + 65651111044.
It is an arithmetic number, because the mean of its divisors is an integer number (65651111044).
Almost surely, 2131302222087 is an apocalyptic number.
131302222087 is a deficient number, since it is larger than the sum of its proper divisors (1).
131302222087 is an equidigital number, since it uses as much as digits as its factorization.
131302222087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8064, while the sum is 31.
The spelling of 131302222087 in words is "one hundred thirty-one billion, three hundred two million, two hundred twenty-two thousand, eighty-seven".
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