1000...
0600-0699
1600-1699 and so on.
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There are a handful of six digit numbers that have no numbers repeating. Some examples are 123456, 234567, 345678, 456789, 567012, 654321, 765432, 876543, and 987654.
899100 of them. Only 900 of the 900000 are palindromic.
A six-digit number is typically referred to as a "six-digit integer" or simply a "six-digit number." It ranges from 100,000 to 999,999. Such numbers are commonly used in various contexts, including identification numbers, codes, and statistics.
32...calculated as possibillities for the first digit: 1 (because if it was 0, it would only be a 5 digit number) x 2 possibilities for the second digit x 2 possibilities for the third digit...etc. ie, 1x2x2x2x2x2=32
6! = 720 ====