Base | Representation |
---|---|
bin | 1111100100010… |
… | …01000111000111 |
3 | 100002201101222122 |
4 | 13302021013013 |
5 | 231412210111 |
6 | 20542520155 |
7 | 3143645243 |
oct | 762110707 |
9 | 302641878 |
10 | 130585031 |
11 | 67791515 |
12 | 3789605b |
13 | 21091b65 |
14 | 134b3423 |
15 | b6e6cdb |
hex | 7c891c7 |
130585031 has 2 divisors, whose sum is σ = 130585032. Its totient is φ = 130585030.
The previous prime is 130585001. The next prime is 130585033.
130585031 is nontrivially palindromic in base 10.
It is a strong prime.
It is a palprime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130585031 is a prime.
It is a super-2 number, since 2×1305850312 = 34104900642541922, which contains 22 as substring.
Together with 130585033, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130585033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65292515 + 65292516.
It is an arithmetic number, because the mean of its divisors is an integer number (65292516).
Almost surely, 2130585031 is an apocalyptic number.
130585031 is a deficient number, since it is larger than the sum of its proper divisors (1).
130585031 is an equidigital number, since it uses as much as digits as its factorization.
130585031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1800, while the sum is 26.
The square root of 130585031 is about 11427.3807585115. The cubic root of 130585031 is about 507.3384746459.
The spelling of 130585031 in words is "one hundred thirty million, five hundred eighty-five thousand, thirty-one".
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