189 palindromes.
99 palindromes.
99 palindromes.
10 - 101,111,121, ...
1089 palindromes
there are 90 palindromes in 100 to 1000 As; 10 palindromes in each 100 and upto 1000, there are 9 hundreds.Therefore; 9 into 10 is equal to 90
99 palindromes.
99 palindromes.
There are 39 palindromes from 11 through 399, inclusive.
There are 10 palindromes divisible by 9 between 1000 and 9999.
10 - 101,111,121, ...
1089 palindromes
there are 90 palindromes in 100 to 1000 As; 10 palindromes in each 100 and upto 1000, there are 9 hundreds.Therefore; 9 into 10 is equal to 90
90000. With 10 digit palindromes, the last 5 digits are the same as the first 5 digits in reverse, eg 12345 54321. So it comes down to how many 5 digit numbers are there? They are the numbers "10000" to "99999", a total of 99999 - 10000 + 1 = 90000.
From 10 - 99, there are 9 (9 x 1) From 100 - 999, there are 90 (9 x 10) From 1000 - 9999, there are 90 (9 x 10) From 10000 - 99999, there are 900 (9 x 10 x 10) And 100000 itself is not a palindrome. Total: 1089
Whole number palindromes between 10 and 40 are: 11, 22, 33 There are, in theory, an infinite number of palindromic decimal numbers in between - but just three palindromic integers.
410
99 of them.