What you're doing is incorrect. You're using the scale model off of Cell, when you're supposed to be using the scale for the androids 13, 14, and 15. What I mean is, when Cell absorbed the androids, he grew in strength exponentially.
HOWEVER, when an android absorbs ANOTHER android, he only gets a small boost, which is why Android 13, who was already fighting on par with SSJ1 Goku, only got to the level of Imperfect Cell by absorbing 14 and 15. The difference in bio android absorption and regular android absorption is marginal.
Sooo... yeah, since Cell isn't involved here at all, you only have a Super 13, who gains a... idk, probably 30% increase with each android. That still puts him only around semi-perfect Cell level, in which case Super Vegeta still shits on him casually. Or one-shots him with final flash. 👆