What Numbers:number theory

With this application, you can quickly find out what number the number corresponds to.
For example, if you search for "7", the app will tell you if the number is a prime number, a palindrome number, a happy number, a harshad number, etc.・Corresponding Number TheoryPrime numberFibonacci numberPalindrome numberArmstrong numberHappy numberSad numberCircular Prime NumberPerfect SquarePerfect CubeHarshad NumberDuck NumberSpy NumberAutomorphic numberStrobogrammatic NumberDisarium NumberEmirp Number・Functions1.
when you enter a number, you can immediately determine what the number theory is.
2.
displays a modal with the meaning of the number theory and an example when tapped.・Displays a modal with the meaning of the number theory and an example when tapped.===1.
Prime number2.
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.3.
Example: 2,3,5,7...===1.
Harshad Number2.
A Harshad number is a number that is divisible by the sum of its digits.3.
Example: 18...===1.
Armstrong number2.
An Armstrong number is a number that is equal to the sum of cubes of its digits.3.
Example: 153,370,371,407...===1.
Palindrome number2.
A palindrome number is a number that is the same when read forwards or backwards.3.
Example: 121,12321...===1.
Automorphic number2.
An automorphic number is a number whose square "ends" in the same digits as the number itself.3.
Example: 5, 6, 25, 76, 376, 625===1.
Emirp Number2.
An emirp number is a prime number that results in a different prime when its digits are reverse.3.
Example: 13, 17, 31, 37...