- What is the weirdest number?
- What is a special number?
- Is 145 a strong number?
- What is mystery number?
- What is the luckiest 4 digit number?
- How do I find a missing number?
- What are the 3 lucky numbers?
- What number is the most powerful?
- What is vampire number in Java?
- How do you make a math model for class 10?
- What is the luckiest number in the universe?
- What is the most popular Pick 4 number?
- What is the most perfect number?
- Why is 70 a weird number?
- What is Peterson number?
- What is meant by strong number?
- What is secret sum?
- What is factorial number?

## 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..

## What is a special number?

A number is known as Special number when sum of the factorial of digits is equal to the original number (given number). Examples: Below are examples of numbers which are Special. Number to check : 145 1! + 4!

## Is 145 a strong number?

Strong numbers are those numbers whose sum of factorial of each digits is equal to the original number. … = 2, 145 is strong number i.e. 1! + 4!

## What is mystery number?

A mystery number is that number which can be expressed as sum of two numbers and those two numbers should be reverse of each other. Examples: Input : n = 121.

## What is the luckiest 4 digit number?

Two digits, five digits, six and beyond…DigitsKernel3495461745None6549945, 6317645 more rows•Mar 1, 2006

## How do I find a missing number?

The missing number is found to be as 6. Therefore, the seventh digit should be “6”. The series is 2, 3, 6, 4, 5, 20, 6, 3, 18. Example 2: Find the missing number in the following number line: 1, 3, 9, 15, 25,? , 49….Find the Missing Numbers.MATHS Related LinksFormula To Find The Circumference Of A CircleSquare Root Of 104 more rows

## What are the 3 lucky numbers?

They are: 3, 7, 13, 31, 37, 43, 67, 73, 79, 127, 151, 163, 193, 211, 223, 241, 283, 307, 331, 349, 367, 409, 421, 433, 463, 487, 541, 577, 601, 613, 619, 631, 643, 673, 727, 739, 769, 787, 823, 883, 937, 991, 997, … (sequence A031157 in the OEIS). It is not known whether there are infinitely many lucky primes.

## What number is the most powerful?

3Why is the Number “3” the Most Powerful Number on the Planet.

## What is vampire number in Java?

In number theory, a vampire number (or true vampire number) is a composite natural number with an even number of digits, that can be factored into two natural numbers each with half as many digits as the original number and not both with trailing zeroes, where the two factors contain precisely all the digits of the …

## How do you make a math model for class 10?

Some of the ideas for making Math models for 10th class are: Congruency of Triangles- Draw colourful triangles on a sheet of paper and show the congruent triangles by SSS, SAS, ASA and RHS congruency.

## What is the luckiest number in the universe?

sevenAccording to a poll run by mathematician Alex Bellos, seven is the most popular lucky number in the world. Given its popularity, maybe it’s no surprise that there are seven days of the week, seven wonders of the world, seven continents, seven seas, and many important ways that the number seven is used.

## What is the most popular Pick 4 number?

Florida(FL) Pick 4 Evening Most Winning Numbers#Most Winning NumbersHits19-2-8-317029-7-6-513036-1-9-210147 more rows

## What is the most 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. The discovery of such numbers is lost in prehistory.

## Why is 70 a weird number?

Weird numbers are natural numbers that are abundant but not semiperfect. For example, 70 is the lowest weird number, because its set of proper divisors {1,2,5,7,10,14,35} sum to 74, but no subset of its set of proper divisors sum to the number 70, and 70 is the smallest number to meet such conditions.

## What is Peterson number?

A number is said to be a Peterson number if the sum of factorials of each digit of the number is equal to the number itself. Example: Input : n = 145 Output = Yes Explanation: 145 = 5!

## What is meant by strong number?

Strong number is a number whose sum of all digits’ factorial is equal to the number ‘n’. … So, to find a number whether its strong number, we have to pick every digit of the number like the number is 145 then we have to pick 1, 4 and 5 now we will find factorial of each number i.e, 1!

## What is secret sum?

For Escape Rooms, the secret sum answer may be useful as part of a combination or clue. Also, when solved the numbers associated with the any one column are unique and could be useful as part of a combination or clue.

## What is factorial number?

Factorial, in mathematics, the product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point. Thus, factorial seven is written 7!, meaning 1 × 2 × 3 × 4 × 5 × 6 × 7. Factorial zero is defined as equal to 1.