Then by your math, the 114 in my Harley [1,869cc] is the magic number and the optimal m/c engine size It contains the "14" and is therefore superior to the 1402 and 1380. A close second is the 650 in my KZ650SR, which contains a 5 [1+4], has 1 engine with 4 cylinders  and has a 6 in it [1-3+8+0]As for the capacity... 1900cc is too many.
It's been scientifically proven (or at least so I claim ) that the optimal capacity for a motorcycle engine is 1402cc. 1380cc is second most optimal.
The former happens to be (by sheer coincidence) the capacity of the Suzuki GSX1400 which I happen to own and ride.
The second is the Moto Guzzi California 1400 - which I'd own if I could afford one.
A nominal 14 is the magic number