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The Number 2009: Properties and Meanings
can be expressed as the sum of 4
positive cubes in exactly 3
and its reversal 9002 are multiples of 7
th prime (17471) is palindromic.
The Year 2009 AD
The year 2009
AD is The International Year of Astronomy (IYA2009
) a year-long celebration of astronomy, coinciding with the 400
th anniversary of the first recorded astronomical observations with a telescope by Galileo Galilei and the publication of Johannes Kepler's Astronomia nova
The United Nations General Assembly declared 2009
as the International Year of Natural Fibres.