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searching for Dodecagonal number 2 found (15 total)

181 (number) (919 words) [view diff] exact match in snippet view article

centered square number, a centered pentagonal number, a centered dodecagonal number, a centered 18-gonal number, and a centered 30-gonal number. 181 is

400 (number) (5,336 words) [view diff] exact match in snippet view article

neighborhood, built in 2008. 460 = 22 × 5 × 23, centered triangular number, dodecagonal number, Harshad number, sum of twelve consecutive primes (17 + 19 + 23 +