I have a page which retrieves a number field.
When the number is 100 I got 100 -as expected-:

I know that I can use LPAD function to pad with zeroes to the left for strings, but as this is a number I am not sure on how to proceed.
I would like the field to display 0100 instead of 100:
The item is numeric:

I have tried to select a 0000 format mask in the item:

Any tips? Can someone help?
APEX 5.0.3.00.03
Universal Theme
Thanks,