Base | Representation |
---|---|
bin | 11001010111110… |
… | …11001100110111 |
3 | 112211111110100001 |
4 | 30223323030313 |
5 | 413441410041 |
6 | 33041532131 |
7 | 5163056326 |
oct | 1453731467 |
9 | 484443301 |
10 | 212841271 |
11 | aa163885 |
12 | 5b344047 |
13 | 351321a6 |
14 | 203a60bd |
15 | 13a44131 |
hex | cafb337 |
212841271 has 4 divisors (see below), whose sum is σ = 217791112. Its totient is φ = 207891432.
The previous prime is 212841259. The next prime is 212841281. The reversal of 212841271 is 172148212.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 212841271 - 211 = 212839223 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 (212841221) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474856 + ... + 2474941.
It is an arithmetic number, because the mean of its divisors is an integer number (54447778).
Almost surely, 2212841271 is an apocalyptic number.
212841271 is a deficient number, since it is larger than the sum of its proper divisors (4949841).
212841271 is an equidigital number, since it uses as much as digits as its factorization.
212841271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4949840.
The product of its digits is 1792, while the sum is 28.
The square root of 212841271 is about 14589.0805399107. The cubic root of 212841271 is about 597.0608770283.
Adding to 212841271 its reverse (172148212), we get a palindrome (384989483).
The spelling of 212841271 in words is "two hundred twelve million, eight hundred forty-one thousand, two hundred seventy-one".
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