Prime Curios!: 233

233
(another Prime Pages' Curiosity)

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233 is the sum of the squares of first four semiprimes. Note that its reversal is the sum of the squares of three consecutive even semiprimes: 332 = 6^2 + 10^2 + 14^2. [Silva]

Submitted: 2009-11-19 20:06:58; Last Modified: 2009-11-20 18:29:45.