All are 5-digit numbers with the same 5 digits

Given that AA is a 5-digit number and that 8A5\dfrac{8A}{5}, 9A5\dfrac{9A}{5}, 21A5\dfrac{21A}{5} and 39A5\dfrac{39A}{5} are all 5-digit numbers with the same 5 digits as AA. Find AA.

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