FAQs
A palindromic number (also known as a numeral palindrome or a numeric palindrome) is a number (such as 16461) that remains the same when its digits are reversed. In other words, it has reflectional symmetry across a vertical axis.
Is 12321 a palindrome? ›
12321 is a number palindrome .
What is a palindrome number 1 to 500? ›
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 444, 454, 464, 474, 484, 494, 505, 515, 525, 535, 545, 555, 565, 575, 585, 595, 606 ...
What is the palindrome of 89? ›
Two other numbers which are known to require many additions are 89 and 98. They each require twenty-four additions before a palindrome is reached. The 13-digit number 8,813,200,023,188 is the palindrome which results for both 89 and 98.
What is palindrome example? ›
Examples of word palindromes include “civic,” “madam,” “radar,” and “deified.” Numerical palindromes include sequences that read the same in reverse order (e.g., 1991), as well as those that can be read upside down and backward (e.g., 1961).
Is 69 a palindrome? ›
These are 95 and 59 (3-step palindromes), 96 and 69 (4-step palindromes) 97 and 79 (6-step palindromes), and 98 and 89 (24-step palindromes!!).
How to solve palindrome number? ›
Method 1: Let the given number be num. A simple method for this problem is to first reverse digits of num, then compare the reverse of num with num. If both are same, then return true, else false.
Is 222 a palindrome? ›
To create the three-digit palindromes, we must have identical, nonzero digits in the one's and hundred's places, but there is no restriction on the digit in the ten's place. The three digit palindromes are 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, . . .
Is 666 a palindrome number? ›
Due to the superstitious significance of the numbers it contains, the palindromic prime 1000000000000066600000000000001 is known as Belphegor's Prime, named after Belphegor, one of the seven princes of Hell. Belphegor's Prime consists of the number 666, on either side enclosed by thirteen zeroes and a one.
Are all palindromic numbers divisible by 11? ›
All palindromes with an even number of digits are divisible by 11.
According to Aziz Inan, University of Portland's professor of engineering, "Eight-digit palindrome dates are very rare and are clustered in the first three or so centuries at the beginning of a millennial, and then don't show up for 600 to 700 years, until they appear as a cluster in the next millennium".
What are the 4 digit palindromic numbers? ›
eg:- 1001,1111,1221,1331,1441,1551,1661,1771,1881,1991,2001,2002and so on....
Is 2332 a palindrome? ›
Examples: Input : 2332 Output : Yes it is Palindrome. Explanation: original number = 2332 reversed number = 2332 Both are same hence the number is palindrome.
What are the 8 digit palindromic numbers? ›
Then the fifth digit is the same as the third, the sixth is the same as the second, and the last is the same as the first, so there are 9000 7-digit palindromic numbers; There are also 9000 palidromic 8-digit numbers, since, the only difference is that the fifth digit is the same as the forth, the sixth is the same as ...