Wednesday, August 19, 2009

190

190 = 2 x 5 x 19.

190 has a unique representation as a sum of three squares: 190 = 32 + 92 + 102.

190 is the 19th triangular number; it is the sum of the first nineteen integers: 1 + 2 + 3 + . . . + 18 + 19 = 190.

190 is the largest number with only distinct prime Roman numeral palindrome factors that is itself a Roman numeral palindrome: 190 = CXC = II * V * XIX.

190 is 2332 in base 4 and 1230 in base 5.


190 is the sum of all the vertices, edges, and faces of the five Platonic solids.

Source:
Prime Curios!

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