In a list of first 1,000,000,000 natural numbers each number is replaced by its digital root.
We get 1,000,000,000 one-digit numbers.

Are there more 1's or 2's ?

(In reply to Depends what natural numbers are. by Jer)

I'm sure the digital root of 999,999,999 is 9, rather than zero.

See http://mathworld.wolfram.com/DigitalRoot.html.

Posted by Charlie on 2011-12-07 12:49:46