# Digit’s Order Selfie Numbers: Factorial and Square-Root

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** just in digit’s order with basic operations, **factorial**, **square-root**, and **factorial and square-root together**. Below are examples and links for download papers:

Paper 1: Different Types of Pretty Wild Narcissistic Numbers: Selfie Representations – 2015;

Paper 2: Selfie Numbers – III: With Factorial and Without Square-Root – Up To Five Digits – 2016

Paper 3: Digit’s Order Selfie Numbers: Factorial and Square-Root – 2017

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