What is armstrong number?



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In number theory, a narcissistic number in a given number base is a number that is the sum of its own digits each raised to the power of the number of digits. An Armstrong number is a number such that the sum ! of its digits raised to the third power is equal to the number ! itself. Check Armstrong Number of n digits. In case of an Armstrong number of 3 digits, the sum of cubes of each digit is equal to the number itself. Armstrong number is a number that is equal to the sum of cubes of its digits. All single digit numbers are Armstrong numbers.



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