2
5
The hundredths digit is 7.
98,376
A number divisible by 123456789 must be 0 or bigger than 123456789. It must, therefore have 1 digit or 9 digits (or more). A remainder of 1 makes no difference to the number of digits. In any case, there can be no number of 4 digits that is divisible by 123456789.
There are 60480 numbers.
5
The hundredths digit is 7.
123456789
98,376
123456789 Josh Griff
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
A number divisible by 123456789 must be 0 or bigger than 123456789. It must, therefore have 1 digit or 9 digits (or more). A remainder of 1 makes no difference to the number of digits. In any case, there can be no number of 4 digits that is divisible by 123456789.
There are 3024 of them.
There are 60480 numbers.
-123456787
There are 504 such numbers.
123456789 + 123456789 = 246913578