Number 49

A page of the Numeropedia - the Special Encyclopedia of Numbers

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[Calendar]  Pentecost Sunday (or Whit Sunday) is 49 days after Easter Sunday (or literally from the prefix “pente-“, the 50th day).

 

[Chemistry]  The atomic number of Indium (In).

 

[Geology]  The North 49th parallel (49o latitude line) is on the border between Canada and the U.S., along 5 states: Washington, Idaho, Montana, North Carolina and Minnesota.

 

[History]  Alaska became the 49th state of the U.S. on 03 January 1959. It is the state of the largest area among 50 U.S. states.

 

[History]  The number of countries allied against the Axis countries (Germany, Italy and Japan).

 

[Math.]  Its odd powers end with 49. Its even powers end with 01.

 

[Math.]  Repeatedly inserting numbers 48 in the middle of the square number 49 yields other squares 4489 = 672, 444889 = 6672, 44448889 = 66672

 

[Math.] 

94 = 47×2 and, reversely, 49 = 47+2

994 = 497×2 and, reversely, 499 = 497+2

9994 = 4997×2 and, reversely, 4999 = 4997+2

99994 = 49997×2 and, reversely, 49999 = 49997+2

...

999,999,999,994 = 499,999,999,997×2 and, reversely,

499,999,999,999 = 499,999,999,997+2

 

[Math.]  Two fourth powers using the same digits: 

324 = 1,048,576 and 494 = 5,764,801.

 

[Movie]  Name of TV show/series or movie: “Ladder 49”.

 

[Phone]  International telephone dialing code for Germany.

 

[Sport]  Name of a professional football team in the NFL (National Football League): San Francisco 49ers. It was after the discovery of gold in (1848-1849) in Sierra Nevada, California/Nevada.

 

[Tech.]  The “number system” code of an EAN-13 barcode for Japan’s products: 45 and 49.