Base | Representation |
---|---|
bin | 11001010010010… |
… | …00010011100010 |
3 | 112210010020011220 |
4 | 30221020103202 |
5 | 413244433024 |
6 | 33014115510 |
7 | 5153615112 |
oct | 1451102342 |
9 | 483106156 |
10 | 212108514 |
11 | a98032a2 |
12 | 5b04bb96 |
13 | 34c367c7 |
14 | 20255042 |
15 | 1394be79 |
hex | ca484e2 |
212108514 has 32 divisors (see below), whose sum is σ = 447679680. Its totient is φ = 66811392.
The previous prime is 212108513. The next prime is 212108543. The reversal of 212108514 is 415801212.
It is a super-2 number, since 2×2121085142 = 89980043422576392, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (212108513) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47214 + ... + 51510.
It is an arithmetic number, because the mean of its divisors is an integer number (13989990).
Almost surely, 2212108514 is an apocalyptic number.
212108514 is an abundant number, since it is smaller than the sum of its proper divisors (235571166).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212108514 is a wasteful number, since it uses less digits than its factorization.
212108514 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4754.
The product of its (nonzero) digits is 640, while the sum is 24.
The square root of 212108514 is about 14563.9456878965. The cubic root of 212108514 is about 596.3749142538.
Adding to 212108514 its reverse (415801212), we get a palindrome (627909726).
The spelling of 212108514 in words is "two hundred twelve million, one hundred eight thousand, five hundred fourteen".
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