Base | Representation |
---|---|
bin | 11001010111110… |
… | …10011101111111 |
3 | 112211111022012221 |
4 | 30223322131333 |
5 | 413441311041 |
6 | 33041510211 |
7 | 5163044512 |
oct | 1453723577 |
9 | 484438187 |
10 | 212838271 |
11 | aa1615a8 |
12 | 5b342367 |
13 | 35130a09 |
14 | 203a4d79 |
15 | 13a432d1 |
hex | cafa77f |
212838271 has 2 divisors, whose sum is σ = 212838272. Its totient is φ = 212838270.
The previous prime is 212838239. The next prime is 212838293. The reversal of 212838271 is 172838212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212838271 - 25 = 212838239 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212838371) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106419135 + 106419136.
It is an arithmetic number, because the mean of its divisors is an integer number (106419136).
Almost surely, 2212838271 is an apocalyptic number.
212838271 is a deficient number, since it is larger than the sum of its proper divisors (1).
212838271 is an equidigital number, since it uses as much as digits as its factorization.
212838271 is an evil number, because the sum of its binary digits is even.
The product of its digits is 10752, while the sum is 34.
The square root of 212838271 is about 14588.9777229249. The cubic root of 212838271 is about 597.0580718219.
The spelling of 212838271 in words is "two hundred twelve million, eight hundred thirty-eight thousand, two hundred seventy-one".
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