Base | Representation |
---|---|
bin | 1111100001110… |
… | …11111010001101 |
3 | 100002010100012212 |
4 | 13300323322031 |
5 | 231322100223 |
6 | 20532040205 |
7 | 3141160313 |
oct | 760737215 |
9 | 302110185 |
10 | 130268813 |
11 | 67595984 |
12 | 37763065 |
13 | 20cb0c4c |
14 | 134300b3 |
15 | b683278 |
hex | 7c3be8d |
130268813 has 2 divisors, whose sum is σ = 130268814. Its totient is φ = 130268812.
The previous prime is 130268797. The next prime is 130268821. The reversal of 130268813 is 318862031.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 113145769 + 17123044 = 10637^2 + 4138^2 .
It is a cyclic number.
It is not a de Polignac number, because 130268813 - 24 = 130268797 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130268813.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130268893) 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, 65134406 + 65134407.
It is an arithmetic number, because the mean of its divisors is an integer number (65134407).
Almost surely, 2130268813 is an apocalyptic number.
It is an amenable number.
130268813 is a deficient number, since it is larger than the sum of its proper divisors (1).
130268813 is an equidigital number, since it uses as much as digits as its factorization.
130268813 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 130268813 is about 11413.5363932482. The cubic root of 130268813 is about 506.9286287214.
The spelling of 130268813 in words is "one hundred thirty million, two hundred sixty-eight thousand, eight hundred thirteen".
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