1, 3, 9, 27, 37, 111, 333, 999
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There are 999 whole numbers less than 1000. Whole numbers are all the positive integers starting from 1 up to 999. The number 1000 is not included because it is not less than 1000. So, the total count of whole numbers less than 1000 is 999.
999 (whole) numbers. THere are the same number whether they are counted in ascending, descending or other order.
-999
It is -9 999 999 999. If limited to positive whole numbers, it is 1 000 000 000.
there are many symmetric numbers. 111, 121, 454, 252, 999, 545 etc