thirty

a semiperfect number

a harshad number

a square pyramidal number

Zinc’s atomic number is 30

between 29 and 31

the number of variations in Bach’s Goldberg Variations

the second point won in a tennis match

according to Albert Camus in ‘”The Myth of Sisyphus” the age of thirty is a crucial period in the life of a man, for at that age he gains a new awareness of the meaning of time.

happy birthday

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7 responses to “thirty

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