Base | Representation |
---|---|
bin | 1100010101110011011… |
… | …0010010100001010100 |
3 | 202021020102100110110122 |
4 | 3011130312102201110 |
5 | 11433144322224022 |
6 | 241221354211112 |
7 | 21213555616340 |
oct | 3053466224124 |
9 | 667212313418 |
10 | 212011133012 |
11 | 81a05837208 |
12 | 3510a123a98 |
13 | 16cb9881183 |
14 | a39339a620 |
15 | 57acb93742 |
hex | 315cd92854 |
212011133012 has 96 divisors (see below), whose sum is σ = 433272913920. Its totient is φ = 88904350080.
The previous prime is 212011132999. The next prime is 212011133071. The reversal of 212011133012 is 210331110212.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 133929173 + ... + 133930755.
It is an arithmetic number, because the mean of its divisors is an integer number (4513259520).
Almost surely, 2212011133012 is an apocalyptic number.
It is an amenable number.
212011133012 is an abundant number, since it is smaller than the sum of its proper divisors (221261780908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212011133012 is a wasteful number, since it uses less digits than its factorization.
212011133012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2181 (or 2179 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 212011133012 its reverse (210331110212), we get a palindrome (422342243224).
The spelling of 212011133012 in words is "two hundred twelve billion, eleven million, one hundred thirty-three thousand, twelve".
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