Numbers 53,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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53,197

[Math.]  A prime number of all 5 different odd digits.

53,298

[Math.]  Each ratio 53298/7614 = 7, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #7.

53,361

[Math.]  Sum of the first 21 cube numbers:

13+23+33+…+193+203+213 = 53,361 = (1+2+3+…+19+20+21)2 = 2312.

533nn

[Zip]  No such U.S. Postal Zip Codes.

53,555

[Zip]  U.S. Postal Zip Code: Lodi, Wisconsin 53555.

536nn

[Zip]  No such U.S. Postal Zip Codes.

53,719

[Math.]  A prime number of all 5 different odd digits.

53,784

[Math.]  Two multiples of number 6723, 6723×3 = 20,169 and 6723×8 = 53,784, use each of 10 digits 0-9 once.

53,791

[Math.]  A prime number of all 5 different odd digits.

53,802

[Math.]  Two multiples of number 7686, 7686×7 = 53,802 and 7686×9 = 69,174, use each of 10 digits 0-9 once.

53,824

[Math. ]  (232+767 = 999 = 212+787)

2322 = 053,824 & 053+824 = 877

7672 = 588,289 & 588+289 = 877

and

2122 = 044,944 & 044+944 = 988

7872 = 619,369 & 619+369 = 988.

53,917

[Math.]  A prime number of all 5 different odd digits.

53,928

[Math.]  The ratio 53928/6741 = 8, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #8.

53,976

[Math.]  539762 = 2,913,408,576, a square number using each of 10 digits 0-9 once. (The 24th of 87 such numbers).

53nnn

[Zip]  U.S. Postal Zip Codes of Wisconsin: 53nnn and 54nnn.