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How much is 54?

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 It's about the number of Countries in Africa. (2016 figures) (sovereign states recognized by the UN only) It's about one-and-one-tenth times the number of Teeth in a Great White Shark's Mouth. In other words, the count of Teeth in a Great White Shark's Mouth is 0.910 times 54. (Carcharodon carcharias) (average; including developing rows) It's about three-fourths the number of Submarines in the US Navy. In other words, the count of Submarines in the US Navy is 1.30 times 54. (a.k.a. Subs) (includes all types, all classes) (2015 figures) The United States Navy maintains a fleet of 72 active submarines. A typical submarine goes to sea with a crew of about 140. It's about three-fifths the number of Keys on a Piano. In other words, 54 is 0.610 times the count of Keys on a Piano, and the count of Keys on a Piano is 1.60 times that amount. (Moden layout; A0 to C7) It's about one-and-nine-tenths times the number of Countries in the European Union. In other words, the count of Countries in the European Union is 0.530 times 54. (a.k.a. EU) (2016 figures) It's about half the number of Wolves in Yellowstone National Park. In other words, 54 is 0.5190 times the count of Wolves in Yellowstone National Park, and the count of Wolves in Yellowstone National Park is 1.930 times that amount. (a.k.a. Henihco'oo; a.k.a. Héetíhco'oo) (December 2014 figures; Wyoming Park area) It's about half the number of Elements on the Periodic Table. In other words, 54 is 0.4580 times the count of Elements on the Periodic Table, and the count of Elements on the Periodic Table is 2.180 times that amount. (a.k.a. Periodic Table of the Elements, a.k.a chemical elements) (confirmed elements as of 2016) From element number one, hydrogen, to element one-hundred eighteen, ununoctium, there are 118 confirmed elements on the Periodic Table. Ninety-four of the elements exist in nature, and the remaining twenty-four have only been synthesized in labs (not having occurred naturally in the time since scientists have begun researching them)