Quick Answer: What Are Armstrong Numbers 1 To 100?

Is one Armstrong a number?

th powers of their digits (a finite sequence) are called Armstrong numbers or plus perfect number and are given by 1, 2, 3, 4, 5, 6, 7, 8, 9, 153, 370, 371, 407, 1634, 8208, 9474, 54748, ….

What is the logic of Armstrong number in C?

A number is called as Armstrong number if sum of cubes of digits of number is equal to the number itself. In the below C program, we are checking whether the input number is Armstrong or not. As you can see that sum of digits of number 370 is equal to the number itself.

Why is 28 a perfect number?

A number is perfect if all of its factors, including 1 but excluding itself, perfectly add up to the number you began with. 6, for example, is perfect, because its factors — 3, 2, and 1 — all sum up to 6. 28 is perfect too: 14, 7, 4, 2, and 1 add up to 28.

How do you say 1000000000000000000000000?

A thousand trillions is a quadrillion: 1,000,000,000,000,000. A thousand quadrillions is a quintillion: 1,000,000,000,000,000,000. A thousand quintillions is a sextillion: 1,000,000,000,000,000,000,000.

Which is the smallest Armstrong number?

Other than the numbers 1 through 9, it is the smallest Armstrong number; there are none with two digits. After 153, the next smallest Armstrong numbers are 370, 371, 407, 1,634, 8,208, and 9,474. There are only 89 Armstrong numbers in total.

What is Armstrong Number example?

In case of an Armstrong number of 3 digits, the sum of cubes of each digit is equal to the number itself. For example: 153 = 1*1*1 + 5*5*5 + 3*3*3 // 153 is an Armstrong number.

What are Armstrong numbers between 1 to 1000?

In this C program, we are printing the Armstrong number from 1 to 1000. An Armstrong number is an n-digit base b number such that the sum of its (base b) digits raised to the power n is the number itself. Hence, 153 because 13 + 53 + 33 = 1 + 125 + 27 = 153.

What is Armstrong number in C?

An Armstrong number of a three-digit number is a number in which the sum of the cube of the digits is equal to the number itself. Hence 153 is an Armstrong number.

What is the number 1000000000000000000000000?

What’s after trillion? Trillion is a 1 with 12 zeros after it, and it looks like this: 1,000,000,000,000. The next named number after trillion is quadrillion, which is a 1 with 15 zeros after it: 1,000,000,000,000,000.

What are the first 5 perfect numbers?

The first few perfect numbers are 6, 28, 496 and 8128 (sequence A000396 in the OEIS).

What is strong number?

Strong number is a number whose sum of all digits’ factorial is equal to the number ‘n’. Factorial implies when we find the product of all the numbers below that number including that number and is denoted by ! (Exclamation sign), For example: 4! = 4x3x2x1 = 24.

Is 0 Armstrong a number?

Armstrong number is a number that is equal to the sum of cubes of its digits. For example 0, 1, 153, 370, 371 and 407 are the Armstrong numbers.

Is 28 a perfect number?

Perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128.

Is 25 a happy number?

Numbers are called ‘happy’ when their sequences, sooner or later, give repeated 1’s. … The number 25 is sad because, however long we go on with the sequence, it will never come to 1, it will just keep repeating the terms (89, 145, 42, 20, 4, 16, 37, 58) over and over again. We call this an 8-cycle or loop.

What are the Armstrong numbers between 1 to 500?

An Armstrong number of is an integer such that the sum of the cubes of its digits is equal to the number itself. The Armstrong numbers between 1 to 500 are : 153, 370, 371, and 407.

What is a 25 digit number called?

one septillionThis number is called one septillion.

What is the weirdest number?

Examples. The smallest weird number is 70. Its proper divisors are 1, 2, 5, 7, 10, 14, and 35; these sum to 74, but no subset of these sums to 70. The number 12, for example, is abundant but not weird, because the proper divisors of 12 are 1, 2, 3, 4, and 6, which sum to 16; but 2 + 4 + 6 = 12.

Why 7 is the perfect number?

Seven is the number of completeness and perfection (both physical and spiritual). It derives much of its meaning from being tied directly to God’s creation of all things. … The word ‘created’ is used 7 times describing God’s creative work (Genesis 1:1, 21, 27 three times; 2:3; 2:4).