A Duck number is a positive number which has zeroes present in it, For example 3210, 8050896, 70709 are all Duck numbers. Please note that a numbers with only leading 0s is not considered as Duck Number. For example, numbers like 035 or 0012 are not considered as Duck Numbers.
What is 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. Zero can be present at any of the positions except the beginning of the number.
How do you check if a number is a duck in Python?
PROCESS: Step 1: [Taking the input] Read n [The number to be checked] Step 2: [Checking for duck number] Set c<-0 [Finding the length of the number] Set n<-length of the string stored in variable 's' For i=0 to n-1 repeat [Counting the number of zeroes present in the number] If s[i]='0' then Set c<-c+1 [End of 'if'] [
What is the spy number?
A number is said to be a Spy number if the sum of all the digits is equal to the product of all digits. Examples : Input : 1412.
What is a special number?
If the sum of the factorial of digits of a number (N) is equal to the number itself, the number (N) is called a special number.
How do I find my duck number?
A Duck number is a positive number which has zeroes present in it, For example 3210, 8050896, 70709 are all Duck numbers. Please note that a numbers with only leading 0s is not considered as Duck Number. For example, numbers like 035 or 0012 are not considered as Duck Numbers.
What is Krishnamurthy number?
A Krishnamurthy number is a number whose sum of the factorial of digits is equal to the number itself. For example 145, sum of factorial of each digits: 1!
Is the number Automorphic?
definition and examples
An automorphic number is an integer whose square ends with the given integer, as (25)2 = 625, and (76)2 = 5776. Strobogrammatic numbers read the same after having been rotated through 180°; e.g., 69, 96, 1001.
Is Happy a number?
is said to be happy. For example, starting with 7 gives the sequence 7, 49, 97, 130, 10, 1, so 7 is a happy number. The first few happy numbers are 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100,(OEIS A007770).
What is a happy number in Java?
A happy number is a number that converges to a sum of 1 after getting replaced by the sum of the square of its digits.
Is 22 a spy number?
Hence, 1124 is a spy number. Similarly, we can check other numbers also. Some other spy numbers are 22, 123, 132, etc.
What is strong number?
Strong number is a special number whose sum of the factorial of digits is equal to the original number. For Example: 145 is strong number. Since, 1! + 4! + 5!
What is Spy plate number?
The Spy Police vehicle plate number was legitimately designed to give security privileges to legitimate businesses in Nigeria in their day to day activities in the movement of staff, equipment and VIPs.
What is the 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 the number 7 is special?
In the Bible, scholars claim that God created the world in six days and used the seventh day to rest. Because of this, the number seven is used to illustrate an idea of completeness throughout the Bible. In both Islam and Judaism, there are seven heavens.
Why is 123 a special number?
123 is a Lucas number. It is the eleventh member of the Mian-Chowla sequence. Along with 6, 123 is one of only two positive integers that is simultaneously two more than a perfect square and two less than a perfect cube (123 = 112 + 2 = 53 – 2).
What is technical number Java?
A number is called a tech number if the given number has an even number of digits and the number can be divided exactly into two parts from the middle. After equally dividing the number, sum up the numbers and find the square of the sum.
How many types of numbers are there in Java?
There are two types: float and double . Even though there are many numeric types in Java, the most used for numbers are int (for whole numbers) and double (for floating point numbers).
Is 666 a Smith number?
Mathematical definition
The first few Smith numbers in base 10 are: 4, 22, 27, 58, 85, 94, 121, 166, 202, 265, 274, 319, 346, 355, 378, 382, 391, 438, 454, 483, 517, 526, 535, 562, 576, 588, 627, 634, 636, 645, 648, 654, 663, 666, 690, 706, 728, 729, 762, 778, 825, 852, 861, 895, 913, 915, 922, 958, 985, 1086 …
Is 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.
What is strong number in C?
Master C and Embedded C Programming- Learn as you go
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.