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");
Ava (given name) for girls in Australia and eighth in New Zealand in 2013. Ava (given name) Ava is a feminine given name in the English and in other languages. Its recent popularity may be linked to a number of celebrity babies of the 1990s, who were ultimately named after American actress Ava Gardner (who had died in 1990). The medieval name "Ava" is an abbreviation of a Germanic name containing the first element "aw-", of uncertain meaning. Old High German (8th to 9th centuries) dithematic feminine names with this element include "Avagisa, Avuldis, Awanpurc, Auwanildis". Saint Ava was a 9th-century princess, daughter