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Guess its pronounced "Oh X ten C" or something like "Oh! Extacy"

I'm guessing that it's pronounced "2 cents". There are 0x10 kind of people in the world ;)

I'm truly sorry to rain on your parade like this, but the "0x" signifies hex, aka base 16, which makes "0x10" equal to 16 in decimal.

Now, if it were 0b10...