How to set sticky bit in octal mode

This should help

$ find / -type f -perm /6000 -exec stat -c "%A %a %n" {} \;

-rwxr-sr-x 2755 /usr/bin/wall
-rwxr-sr-x 2755 /usr/bin/mlocate
-rwxr-sr-x 2755 /usr/bin/dotlockfile
-rwxr-sr-x 2755 /usr/bin/crontab
-rwsr-sr-x 6755 /usr/bin/at
-rwxr-sr-x 2755 /usr/bin/bsd-write
-rwxr-sr-x 2755 /usr/bin/ssh-agent
-rwsr-xr-x 4755 /usr/bin/mtr
-rwsr-xr-x 4755 /usr/bin/traceroute6.iputils
-rwsr-xr-x 4755 /usr/bin/passwd
-rwsr-xr-x 4755 /usr/bin/pkexec
-rwsr-sr-x 6755 /usr/bin/X

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