Factorial-Type Selfie Numbers in Reverse Order of Digits

Abstract

Numbers represented by their own digits by certain operations are considered as selfie numbers. Some times they are called as wild narcissistic numbers. There are many ways of representing selfie numbers. They can be represented in digit's order, reverse order of digits, increasing and/or decreasing order of digits, etc. These can be obtained by use of basis operations along with factorial, square-root, Fibonacci sequence, Triangular numbers, binomial coefficients, s-gonal values, centered polygonal numbers, etc. In this work, we have re-written selfie numbers in reverse order of digits using, factorial. The work is up to 6 digits numbers. The digit's order selfie numbers with factorial can be seen in author's another work