What is Krishnamurthy number in Java?

Krishnamurthy number is another special number in Java. A number is said to be Krishnamurthy if the factorial sum of all its digits is equal to that number. Krishnamurthy number is also referred to as a Strong number.

What is the Krishnamurthy number?

A Krishnamurthy number is a number whose sum of the factorial of digits is equal to the number itself. Given a number N as input. Print “YES” if it’s a Krishnamurthy Number, else Print “NO”.

How do I find my Krishnamurthy number?

A number is said to be a Krishnamurthy number if the sum of the factorials of its digits returns the original number.

  1. For example, if the number is 145, then the sum of the factors of the digits can be calculated as:
  2. 1! + 4! + 5! = 1 + 24 + 120 = 145 which is equal to the original number. …
  3. 1! + 2! + 3!

What is a special number in Java?

Special Numbers in Java are ones whose sum of factorials of digits is equal to the number itself. It can be an N digit number. The program has first to break the number into its corresponding digits and calculate their factorials. … If the sum matches the original number, then the number is called to be a Special number.

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What is strong number in Java?

Definition of Strong Number in Java. A strong number is a special number that can be defined as an addition of factorial of each digit of the number, which is equal to the number itself. To better understand the concept of a strong number, have a look at the below example: The number 145 is a strong number.

Is 1 a Krishnamurthy number?

Interestingly, there are exactly four Krishnamurthy numbers i.e. 1, 2, 145, and 40585 known to us.

What is Harshad number in Java?

A number is said to be the Harshad number if it is divisible by the sum of its digit. For example, if number is 156, then sum of its digit will be 1 + 5 + 6 = 12. Since 156 is divisible by 12. So, 156 is a Harshad number.

Is special number and Krishnamurthy number same?

Krishnamurthy number is another special number in Java. A number is said to be Krishnamurthy if the factorial sum of all its digits is equal to that number. Krishnamurthy number is also referred to as a Strong number.

What is the neon number in Java?

A positive integer whose sum of digits of its square is equal to the number itself is called a neon number.

What is a duck number in Java?

Duck number is another special positive non-zero number that contains zero in it. The digit zero should not be presented at the starting of the number. 08237 is not a Duck number because it contains zero at the beginning of it. …

Is 1089 a special number?

1089 is the first reverse-divisible number. The next is 2178 (= 1089 × 2 = 8712/4), and they are the only four-digit numbers that divide their reverse.

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Is 120 a special number?

120 is the first multiply perfect number of order three (a 3-perfect or triperfect number). The sum of its factors (including one and itself) sum to 360; exactly three times 120. Note that perfect numbers are order two (2-perfect) by the same definition.

What is Nelson number in Java?

The number 111 is called a nelson number and multiples of nelson are called double Nelson (222), triple Nelson (333), and so on. It is important to note that only few multiples of 111 are called Nelson numbers. These numbers are 111, 222, 333, 444, 555, 666, 777, 888, and 999.

What is happy number in Java?

Introduction to Happy Numbers in Java. Happy Number are positive non-zero integer numbers. If we find the sum of the squares of its every digit and repeat that process until the number will be equals to 1(one). … The examples of Happy Numbers are: 1, 7, 10, 13, 19, 23, 28, 31, 32, etc.

What is a fascinating number?

Fascinating Number: When a number( 3 digits or more ) is multiplied by 2 and 3, and when both these products are concatenated with the original number, then it results in all digits from 1 to 9 present exactly once. There could be any number of zeros and are ignored. Examples: Input: 192.

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