Base | Representation |
---|---|
bin | 1111011111111… |
… | …11101101010111 |
3 | 100001122210222012 |
4 | 13233333231113 |
5 | 231241202411 |
6 | 20522454435 |
7 | 3136112363 |
oct | 757775527 |
9 | 301583865 |
10 | 130022231 |
11 | 67437699 |
12 | 3766441b |
13 | 20c25941 |
14 | 133a82a3 |
15 | b63518b |
hex | 7bffb57 |
130022231 has 2 divisors, whose sum is σ = 130022232. Its totient is φ = 130022230.
The previous prime is 130022213. The next prime is 130022251. The reversal of 130022231 is 132220031.
It is a happy number.
Together with previous prime (130022213) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130022231 is a prime.
It is a super-2 number, since 2×1300222312 = 33811561108434722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130022251) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65011115 + 65011116.
It is an arithmetic number, because the mean of its divisors is an integer number (65011116).
Almost surely, 2130022231 is an apocalyptic number.
130022231 is a deficient number, since it is larger than the sum of its proper divisors (1).
130022231 is an equidigital number, since it uses as much as digits as its factorization.
130022231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 130022231 is about 11402.7291031577. The cubic root of 130022231 is about 506.6085766062.
Adding to 130022231 its reverse (132220031), we get a palindrome (262242262).
The spelling of 130022231 in words is "one hundred thirty million, twenty-two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •