why 73 is the perfect number?

why 73 is the perfect number?
"The Alien Parasite Hypothesis," the number 73 is actually pretty special. "73 is the 21st prime number," Sheldon explains. "Its mirror, 37, is the 12th and its mirror, 21, is the product of multiplying 7 and 3 ... and in binary 73 is a palindrome, 1001001, which backwards is 1001001."
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Is 73 a lucky number?
Most common lucky numbers :
1, 3, 7, 9, 13, 15, 21, 25, 31, 33, 37, 43, 49, 51, 63, 67, 69, 73, 75, 79, 87, 93, 99, … Number 8 is lucky in Chinese culture because the Chinese word for “eight” sounds like the word for “wealth”.
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What is the significance of 73?
The number 73 signifies inner insights and decisions made from within. It also symbolizes determination, wisdom, persistence, self – confidence, introspection, independence, freedom, creativity and creative self – expression.
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What kind of number is 73?
← 72 73 74 →
Cardinal
Ordinal
Factorization
Prime
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Why does Sheldon wear a 73 shirt?
The 73 reference is from Season 4, Episode 10 (The Alien Parasite Hypothesis), when Sheldon says “The best number is 73 …. ... 73 is the twenty-first prime number. Its mirror, 37, is the twelfth and its mirror, 21, is the product of multiplying (hang on to your hats) 7 and 3….
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