Numbers 72,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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72,361

[Math.]  Three square numbers using the same digits: 1542 = 23716, 1812 = 32761 and 2692 = 72361.

 

72,533

[Zip]  U.S. Postal Zip Code: Fifty-Six, Arkansas 72533.

 

72,621

[Math.]  726212 = 5,273,809,641, a square number using each of 10 digits 0-9 once. (The 52nd of 87 such numbers).

 

72,756

[Math.]  5,267,275,776 = 72,5762, each digit is duplicated.  (References [15])

 

 72nnn

[Zip]  U.S. Postal Zip Codes of Arkansas: 716nn-719nn and 72nnn.