icon
Recursively abundant and recursively perfect numbers

TFT. Fink Arxiv

Ample & pristine numbers

Parallels between the perfect and abundant numbers and their recursive analogs point to deeper structure in the recursive divisor function.

Recursively divisible numbers

TFT. Fink Arxiv

Recursively divisible numbers

Recursively divisible numbers are a new kind of number that are highly divisible, whose quotients are highly divisible, and so on.