Digital root number is the number mod 11 (Ɛ), for example, 1972 is 1 + 9 + 7 + 2 = 19 = 17 which is 1 + 7 = 8, while in decimal the root of the same number (3110) is 5; and in base 16 a digital root of a number is the number mod 15 (0xF), for example, 0x7DF is 7 + 13 + 15 = 35 = 0x23 which is 2 + 3 = 5, while in decimal the root of the same number (2015) is 8. Digital roots form an important mechanic in the visual novel adventure
What Time Is It? (song) What Time Is It? (song) "What Time Is It?" is the opening musical number and first single from the Disney Channel Original Movie "High School Musical 2". It is featured on the "High School Musical 2" soundtrack, and is the first song off the "High School Musical 2" soundtrack. The song had its world premiere on Radio Disney on May 25, 2007 as part of its Planet Premiere featurette. On June 8, Disney premiered the video as a sneak peek in multiple nations at close to the same time. The single was released on July 16, 2007 worldwide, and on