Error: User/Group Name Showing Number. How to Fix?

Error: User/Group Name Showing Number. How to Fix?

-rwxr-xr-x  1 1451843492 2116441323    3875 Apr  1  2015 rcaws
-rwxr-xr-x  1 1451843492 2116441323    8828 Mar  8  2016 rccenshare
-rwxr-xr-x  1 1451843492 2116441323   11761 Apr 22 10:39 rccss

Cause:
 Sometimes the specified Ownership (User/Group) is not in the system. Or otherwise we have User/Group in Place but System can not map it Properly .

Resolution:

1. Check if the user present in system.
getent passwd 1451843492
or
grep -i   1451843492 /etc/passwd

2. If the user is present and is not Properly mapped, We'll need to find the files  which is having user/group id as following (1451843492 2116441323) and change them as required.

a. List the files.
 find / -group 2116441323 -name "*" -exec ls -la {} \;
find / -user 1451843492 -name "*" -exec ls -la {} \;
b. Change to desired Ownership.
find . -group 2116441323 -name "*" -exec chown root:wheel {} \;