Examples of 9 digit numbers without repeating a digit:
123,456,789
876,543,210
714,825,369
Because you want the smallest number (I missed this part of the question
102345678 is the smallest (01... smaller still if you allow leading zero)
If you are allowed decimals however, the smallest number would be:
0.12345678 (assuming you count the leading 0)
For the second question (what is the value of the digit 2):
2 represents the number two, the number between one (1) and three (3).
987654321
10234567
4321
There are twelve possible solutions using the rule you stated.
Assuming whole numbers and a leading zero does not count: 10,234,567
987654321
10234567
9,876,543
4321
There are twelve possible solutions using the rule you stated.
Assuming whole numbers and a leading zero does not count: 10,234,567
98765432
The smallest possible 9 digit number (assuming negatives are not allowed) is 102,345,678 in which 5 is in the thousands' place.
123,456,789
9876543
It is 98765.
9876543