Base | Representation |
---|---|
bin | 1100010110010100100… |
… | …0001001001101101011 |
3 | 202021121002201012222101 |
4 | 3011211020021031223 |
5 | 11433440401444321 |
6 | 241243235234231 |
7 | 21220163340346 |
oct | 3054510111553 |
9 | 667532635871 |
10 | 212150031211 |
11 | 81a77186508 |
12 | 35148748977 |
13 | 1700c593b61 |
14 | a3a79d545d |
15 | 57b9e7d791 |
hex | 316520936b |
212150031211 has 2 divisors, whose sum is σ = 212150031212. Its totient is φ = 212150031210.
The previous prime is 212150031133. The next prime is 212150031227. The reversal of 212150031211 is 112130051212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212150031211 - 27 = 212150031083 is a prime.
It is not a weakly prime, because it can be changed into another prime (212150031281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106075015605 + 106075015606.
It is an arithmetic number, because the mean of its divisors is an integer number (106075015606).
Almost surely, 2212150031211 is an apocalyptic number.
212150031211 is a deficient number, since it is larger than the sum of its proper divisors (1).
212150031211 is an equidigital number, since it uses as much as digits as its factorization.
212150031211 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 120, while the sum is 19.
Adding to 212150031211 its reverse (112130051212), we get a palindrome (324280082423).
The spelling of 212150031211 in words is "two hundred twelve billion, one hundred fifty million, thirty-one thousand, two hundred eleven".
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