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");
Luca (given name) the Balkans with the name sharing the same origin. Luca is also a Hungarian and Croatian female given name, but pronounced differently as "LOO-tsah" the equivalent of the English name Lucy. Luca (given name) Luca (also spelt Louca, Luka, Louka, Lucca) is a given name used predominantly for males, mainly in Latin America, Italy, Spain, Portugal, Romania, Russia, Serbia, Slovenia, Croatia, Bulgaria, Greece, Georgia and Armenia. It is derived from the Latin name Lucas, which itself is derived from the Latin word "lux" (light). It may also come from the Latin word "lucus" meaning "sacred wood" (a cognate of lucere).