Numbers 73,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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73,248

[Math.]  The ratio 73248/9156 = 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.

 

73,264

[Math.]  The ratio 73248/9158 = 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.

 

73,296

[Math.]  Two multiples of number 9162, 9162×5 = 45,810 and 9162×8 = 73,296, use each of 10 digits 0-9 once.

 

732nn

[Zip]  No such U.S. Postal Zip Codes.

 

73,331

[Math.]  A right-truncatable prime number: self, 7333, 733, 73 and 7 are prime numbers.

 

73,456

[Math.]  The ratio 73456/9182 = 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.

 

73,548

[Math.]  Each ratio, 45792/3816 = 73548/6129 = 89532/7461 = 91584/7632 = 12, uses each of 9 digits 1-9 once.

 

73,615, 73,616 & 73,617

[Math.]  The triplet (73615, 73616 and 73617) is the smallest set of 3 consecutive Smith numbers.

 

73,939

[Math.]  A right-truncatable prime number: self, 7393, 739, 73 and 7 are prime numbers.

 

73,951

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

 

73nnn

[Zip]  U.S. Postal Zip Codes of Oklahoma: 73nnn and 74nnn.