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A136925
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Numbers n such that n and the square of n use only the digits 0, 2, 7, 8 and 9.
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1
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0, 27, 270, 297, 2700, 2970, 2997, 27000, 28297, 29700, 29970, 29997, 88277, 270000, 282970, 297000, 298027, 299700, 299970, 299997, 882770, 2700000, 2787997, 2829700, 2970000, 2980270, 2997000, 2999700, 2999970, 2999997, 8827700, 9888277, 27000000, 27879970, 27980297, 28297000, 28299827, 29700000, 29802700, 29970000, 29997000
(list; graph; refs; listen; history; internal format)
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