What Is Special About The Number 90?

What Is Special About The Number 90?

90 is: a unitary perfect number because it is the sum of its unitary divisors (excluding itself): 1+2+5+9+10+18+45=90. a semiperfect number because it is equal to the sum of a subset of its divisors. a pronic number: 9 × 10.

C Program To Check For Alphabet, Number or Special Symbol

Any character is entered through the keyboard, write a C program to determine whether the character entered is a capital letter, …

What are special number systems? Explained with examples!!

In this video I have explained about ,

A Salamander is NOT a Number! | SPECIAL REPORT | Scratch Garden

PLEASE PAY ATTENTION to this