Base | Representation |
---|---|
bin | 1100010110100011100… |
… | …1111101100010000101 |
3 | 202021202111222211002021 |
4 | 3011220321331202011 |
5 | 11434103114002323 |
6 | 241253422043141 |
7 | 21221563216642 |
oct | 3055071754205 |
9 | 667674884067 |
10 | 212213422213 |
11 | 81aa9a43071 |
12 | 35165a194b1 |
13 | 1701c75a420 |
14 | a3b21b6dc9 |
15 | 57c080105d |
hex | 3168e7d885 |
212213422213 has 32 divisors (see below), whose sum is σ = 241895888640. Its totient is φ = 184687050240.
The previous prime is 212213422193. The next prime is 212213422217. The reversal of 212213422213 is 312224312212.
212213422213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-212213422213 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212213422217) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 65719483 + ... + 65722711.
It is an arithmetic number, because the mean of its divisors is an integer number (7559246520).
Almost surely, 2212213422213 is an apocalyptic number.
212213422213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
212213422213 is a deficient number, since it is larger than the sum of its proper divisors (29682466427).
212213422213 is a wasteful number, since it uses less digits than its factorization.
212213422213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6349.
The product of its digits is 2304, while the sum is 25.
Adding to 212213422213 its reverse (312224312212), we get a palindrome (524437734425).
The spelling of 212213422213 in words is "two hundred twelve billion, two hundred thirteen million, four hundred twenty-two thousand, two hundred thirteen".
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