Base | Representation |
---|---|
bin | 1100010110001111101… |
… | …1110110011000001000 |
3 | 202021112201002002222222 |
4 | 3011203323312120020 |
5 | 11433420241443422 |
6 | 241241242433212 |
7 | 21216531341126 |
oct | 3054373663010 |
9 | 667481062888 |
10 | 212130031112 |
11 | 81a669660aa |
12 | 35141b02808 |
13 | 170083b068c |
14 | a3a50aa916 |
15 | 57b832c842 |
hex | 3163ef6608 |
212130031112 has 32 divisors (see below), whose sum is σ = 398456997120. Its totient is φ = 105875003520.
The previous prime is 212130031109. The next prime is 212130031129. The reversal of 212130031112 is 211130031212.
212130031112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×2121300311123 (a number of 35 digits) contains 333 as substring.
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, 11137037 + ... + 11156067.
It is an arithmetic number, because the mean of its divisors is an integer number (12451781160).
Almost surely, 2212130031112 is an apocalyptic number.
It is an amenable number.
212130031112 is a deficient number, since it is larger than the sum of its proper divisors (186326966008).
212130031112 is a wasteful number, since it uses less digits than its factorization.
212130031112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21461 (or 21457 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 212130031112 its reverse (211130031212), we get a palindrome (423260062324).
The spelling of 212130031112 in words is "two hundred twelve billion, one hundred thirty million, thirty-one thousand, one hundred twelve".
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