16 (number) 0 to 15 in each column. Sixteen is an even number and a square number. Sixteen is the fourth power of two. Sixteen is the only integer that equals "m" and "n", for some unequal integers "m" and "n" ("m" = 4, "n" = 2, or vice versa). It has this property because 2 = 2 × 2. It is also equal to 2 (see tetration). 16 is the base of the hexadecimal number system, which is used extensively in computer science. In Spanish and Portuguese, 16 is the first compound number (Spanish: "dieciséis", European Portuguese: "dezasseis", Brazilian Portuguese: "dezesseis");
Gregory (given name) Gregory (given name) The masculine first name Gregory derives from the Latin name "Gregorius", which came from the late Greek name "Γρηγόριος" (Grēgorios) meaning "watchful, alert" (derived from Greek "γρηγoρεῖν" "grēgorein" meaning "to watch"). Through folk etymology, the name also became associated with Latin "grex" (stem "greg–") meaning "flock" or "herd". This association with a shepherd who diligently guides his flock contributed to the name's popularity among monks and popes. Sixteen popes and two antipopes have used the name "Gregorius", starting with Pope Gregory I (Gregory the Great). It is tied with Benedict as the second-most popular name for pope,