3,333
there are 10 palindromic numbers between 9000 and 10000 9009,9119,9229,9339,9449,9559,9669,9779,9889,9999
9998.
2438 of them.
14
Infinitely many. There are a 100 perfect squares.
Eight of them.
Only the multiples of 1000.
There are 1229 prime numbers that are less than 10000.
The nearest number whose square ≤ 10000 is 100. Then the greatest odd number less that 100 is 99 so there are 50 odd numbers in the range 1- 99 inclusive whose squares are less than 10000.
there are 10 palindromic numbers between 9000 and 10000 9009,9119,9229,9339,9449,9559,9669,9779,9889,9999
There are eight such numbers.
1229
9998.
10000
1089
999
Int(10000/3) = Int(3333.3) = 3333