Base | Representation |
---|---|
bin | 11001010100011… |
… | …00010001111111 |
3 | 112210122101010002 |
4 | 30222030101333 |
5 | 413332340233 |
6 | 33024104515 |
7 | 5156154626 |
oct | 1452142177 |
9 | 483571102 |
10 | 212386943 |
11 | a99834aa |
12 | 5b16513b |
13 | 35003462 |
14 | 202c86bd |
15 | 139a46e8 |
hex | ca8c47f |
212386943 has 2 divisors, whose sum is σ = 212386944. Its totient is φ = 212386942.
The previous prime is 212386873. The next prime is 212386963. The reversal of 212386943 is 349683212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212386943 - 210 = 212385919 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 212386897 and 212386906.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212386963) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106193471 + 106193472.
It is an arithmetic number, because the mean of its divisors is an integer number (106193472).
Almost surely, 2212386943 is an apocalyptic number.
212386943 is a deficient number, since it is larger than the sum of its proper divisors (1).
212386943 is an equidigital number, since it uses as much as digits as its factorization.
212386943 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 62208, while the sum is 38.
The square root of 212386943 is about 14573.5013980855. The cubic root of 212386943 is about 596.6357484612.
The spelling of 212386943 in words is "two hundred twelve million, three hundred eighty-six thousand, nine hundred forty-three".
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