Base | Representation |
---|---|
bin | 1111100000110… |
… | …00100111110111 |
3 | 100001211222221202 |
4 | 13300120213313 |
5 | 231302434104 |
6 | 20525003115 |
7 | 3140016035 |
oct | 760304767 |
9 | 301758852 |
10 | 130124279 |
11 | 674a732a |
12 | 376b349b |
13 | 20c6021c |
14 | 133d3555 |
15 | b65551e |
hex | 7c189f7 |
130124279 has 2 divisors, whose sum is σ = 130124280. Its totient is φ = 130124278.
The previous prime is 130124261. The next prime is 130124287. The reversal of 130124279 is 972421031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130124279 - 220 = 129075703 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130174279) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65062139 + 65062140.
It is an arithmetic number, because the mean of its divisors is an integer number (65062140).
Almost surely, 2130124279 is an apocalyptic number.
130124279 is a deficient number, since it is larger than the sum of its proper divisors (1).
130124279 is an equidigital number, since it uses as much as digits as its factorization.
130124279 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3024, while the sum is 29.
The square root of 130124279 is about 11407.2029437544. The cubic root of 130124279 is about 506.7410792619.
The spelling of 130124279 in words is "one hundred thirty million, one hundred twenty-four thousand, two hundred seventy-nine".
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