1247

1247 is an integer. In mathematics it is composite, with prime factorization 29 × 43, making it a semiprime. Its decimal representation ends with 7, and the sum of its digits is 14, so it is not divisible by 3. The number can be represented in several common numeral systems: binary 10011011111, decimal 1247, and hexadecimal 0x4DF. In Roman numerals it is MCCXLVII.

As a year, 1247 CE sits in the middle of the 13th century, part of the High Middle Ages.

In other numeric properties, 1247 is not a palindrome, not a square or cube; it's odd and is between 35^2 (1225) and 36^2 (1296).