Question 520170
2 = 1 integer
20 - 29 = 10 integers
200 - 299 = 100 integers
2000 - 2999 = 1000 integers
So far:
{{{ 1 + 10 + 100 + 1000 = 1111 }}} integers
{{{ 1978 - 1111 = 867 }}}
20000 - 20866 = 867 integers
The 1978th integer is 20866