In Mathematics
54 is a 19-gonal number. Twice the third power of three, 54 is a Leyland number. 54 can be written as the sum of three squares in three different ways: . It is the smallest number with this property. Like all other multiples of 6, it is a semiperfect number.
The factorial of 54 is 230,843,697,339,241,380,472,092,742,683,027,581,083,278,564,571,807,941,132,288,000,000,000,000, or approximately 230.843697339241 x 1069.
In base 10, 54 is a Harshad number.
The Holt graph has 54 edges.
Read more about this topic: 54 (number)
Famous quotes containing the word mathematics:
“Why does man freeze to death trying to reach the North Pole? Why does man drive himself to suffer the steam and heat of the Amazon? Why does he stagger his mind with the mathematics of the sky? Once the question mark has arisen in the human brain the answer must be found, if it takes a hundred years. A thousand years.”
—Walter Reisch (1903–1963)
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—George Bernard Shaw (1856–1950)