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249 (two hundred [and] forty-nine) is the natural number following 248 and preceding 250. 249 is: a Blum integer. a semiprime. palindromic in bases 82 (3382) and 248 (11248). a Harshad number in bases 3, 83, 84, 124, 167 and 247. the aliquot sum of any of these numbers: 375, 531, 1687, 4351...

Year 249 (CCXLIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gavius and Aquilinus (or, less frequently, year 1002 Ab urbe condita).