Base | Representation |
---|---|
bin | 1101011100100101000… |
… | …1010000111110110001 |
3 | 211002021111002120101022 |
4 | 3113021101100332301 |
5 | 12241102030404410 |
6 | 254042522145225 |
7 | 22455433466324 |
oct | 3271121207661 |
9 | 732244076338 |
10 | 231010013105 |
11 | 89a75148003 |
12 | 38930952215 |
13 | 18a26a18c61 |
14 | b2767227bb |
15 | 6020aab455 |
hex | 35c9450fb1 |
231010013105 has 8 divisors (see below), whose sum is σ = 277528112232. Its totient is φ = 184597279488.
The previous prime is 231010013011. The next prime is 231010013111. The reversal of 231010013105 is 501310010132.
231010013105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 4791823729 + 226218189376 = 69223^2 + 475624^2 .
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 231010013105 - 234 = 213830143921 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26336552 + ... + 26345321.
It is an arithmetic number, because the mean of its divisors is an integer number (34691014029).
Almost surely, 2231010013105 is an apocalyptic number.
It is an amenable number.
231010013105 is a deficient number, since it is larger than the sum of its proper divisors (46518099127).
231010013105 is an equidigital number, since it uses as much as digits as its factorization.
231010013105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52682755.
The product of its (nonzero) digits is 90, while the sum is 17.
Adding to 231010013105 its reverse (501310010132), we get a palindrome (732320023237).
The spelling of 231010013105 in words is "two hundred thirty-one billion, ten million, thirteen thousand, one hundred five".
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