Base | Representation |
---|---|
bin | 11001010010001… |
… | …11111111111100 |
3 | 112210010011110110 |
4 | 30221013333330 |
5 | 413244413020 |
6 | 33014110020 |
7 | 5153611341 |
oct | 1451077774 |
9 | 483104413 |
10 | 212107260 |
11 | a9802362 |
12 | 5b04b310 |
13 | 34c36071 |
14 | 202547c8 |
15 | 1394b8e0 |
hex | ca47ffc |
212107260 has 96 divisors (see below), whose sum is σ = 634717440. Its totient is φ = 52766208.
The previous prime is 212107253. The next prime is 212107319. The reversal of 212107260 is 62701212.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74992 + ... + 77768.
It is an arithmetic number, because the mean of its divisors is an integer number (6611640).
Almost surely, 2212107260 is an apocalyptic number.
212107260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212107260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317358720).
212107260 is an abundant number, since it is smaller than the sum of its proper divisors (422610180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212107260 is a wasteful number, since it uses less digits than its factorization.
212107260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2875 (or 2873 counting only the distinct ones).
The product of its (nonzero) digits is 336, while the sum is 21.
The square root of 212107260 is about 14563.9026363128. The cubic root of 212107260 is about 596.3737389818.
Adding to 212107260 its reverse (62701212), we get a palindrome (274808472).
The spelling of 212107260 in words is "two hundred twelve million, one hundred seven thousand, two hundred sixty".
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