veintisiete

Veintisiete is the Spanish numeral for 27. It follows veintiséis and precedes veintiocho. In Roman numerals it is XXVII. The word is formed from veinti- (twenty) and siete (seven), and is written as a single word.

In mathematics, 27 equals 3 cubed (3^3); it is a perfect cube and an odd composite number. Its divisors are 1, 3, 9, and 27. It is a deficient number, since the sum of its proper divisors (1 + 3 + 9 = 13) is less than 27. In base 3, 27 is written as 1000.

In science, 27 is the atomic number of cobalt (Co). In language and culture, the Spanish alphabet is commonly cited as having 27 letters, including the letter ñ, a standard since the 2010 reform that removed ch and ll as distinct letters. The number also appears in cultural references such as the “27 Club,” a term used to describe musicians who died at age 27.