1800
Year
Is number of different US President's in 1800s a lucky number in Hong Kong?
There were 24 different US President's in the 1800s. 4 is an unlucky number in Chinese numerology. Where East Asian and Western cultures blend, such as in Hong Kong, it is possible in some buildings that the thirteenth floor along with all the floors with 4s to be omitted. 
How many U.S. Presidents served during the 1800's? What number is unlucky in Chinese numerology? Does #1 end with a number other than #2?