680189
This number is a prime.
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The smallest invertible prime containing all the invertible
digits that is the hypotenuse of a Pythagorean triangle,
i.e., (468939^2+492700^2=680189^2). Curiously, 680189 is also
expressible as the sum of two squares (758^2+325^2). [Bajpai]
Submitted: 2018-11-28 01:48:11; Last Modified: 2018-11-28 12:34:46.
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