Dr. Pepper-
The odds that I can solve your puzzle are about the same as the odds of my being able to recite the Gettysburg Address by heart.
…backwards
…in Croatian
…while standing upside down
…underwater
…while juggling
…three running chainsaws
…with my feet
Sorry – I honestly have no idea.
I tried to find a pattern of how frequently an extra digit was added to the total as the exponent increased, but couldn’t find one.
Can I use the call-a-“squeak” lifeline?
I think posters “anon for this”, “SJSinNYC”, “ZachKessin” and “charliehall” (and possibly others) may have the background to answer your puzzle.