
Curios:
Curios Search:
Participate: 
Single Curio View: (Seek other curios for this number) There are 5 natural numbers n such that n is equal to the number of 5's in the decimal digits of all natural numbers smaller or equal to n. [Capelle]
Submitted: 20090810 00:01:31; Last Modified: 20090810 01:59:00.
Prime Curios! © 20002017 (all rights
reserved)
