14 (number)
From Halbeeg, the open encyclopedia · Af-Soomaali
119 languages
14 is a natural number that lies between 13 and 15. In the decimal system it is written with two digits: 1 and 4.
It is an even number, because it is divisible by two. It is a composite number, meaning it has divisors other than 1 and itself: its divisors are 1, 2, 7, and 14. Its prime factorization is 2 × 7.
Mathematical properties
The sum of its proper divisors (divisors less than the number itself) is 1 + 2 + 7 = 10, which is less than 14. For this reason 14 is classified as a deficient number. It is also squarefree, because it has no repeated prime factors; both 2 and 7 appear only once.
In other number bases: in binary (base 2) it is written as 1110, and in hexadecimal (base 16) as E. In Roman numerals it is XIV.
Everyday uses
14 is the number of days in two weeks, a period commonly used in work schedules, health care leave, and academic calendars. It is also the date in a month frequently associated with monthly planning.
In Somali, 14 is called 'afar iyo toban' (four and ten), combining the words for four and ten. This pattern is common to how Somali forms numbers from 11 to 19.