Base | Representation |
---|---|
bin | 1101011100101001111… |
… | …0000000011000100011 |
3 | 211002022212221121212022 |
4 | 3113022132000120203 |
5 | 12241122203131321 |
6 | 254044521252055 |
7 | 22456066463636 |
oct | 3271236003043 |
9 | 732285847768 |
10 | 231030130211 |
11 | 89a85538311 |
12 | 3893763402b |
13 | 18a2ac4077a |
14 | b27927bc1d |
15 | 6022731dab |
hex | 35ca780623 |
231030130211 has 8 divisors (see below), whose sum is σ = 234056898240. Its totient is φ = 228019857408.
The previous prime is 231030130207. The next prime is 231030130213. The reversal of 231030130211 is 112031030132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 231030130211 - 22 = 231030130207 is a prime.
It is a super-2 number, since 2×2310301302112 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 231030130211.
It is not an unprimeable number, because it can be changed into a prime (231030130213) 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 in 7 ways as a sum of consecutive naturals, for example, 4095611 + ... + 4151636.
It is an arithmetic number, because the mean of its divisors is an integer number (29257112280).
Almost surely, 2231030130211 is an apocalyptic number.
231030130211 is a deficient number, since it is larger than the sum of its proper divisors (3026768029).
231030130211 is a wasteful number, since it uses less digits than its factorization.
231030130211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8247613.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 231030130211 its reverse (112031030132), we get a palindrome (343061160343).
The spelling of 231030130211 in words is "two hundred thirty-one billion, thirty million, one hundred thirty thousand, two hundred eleven".
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