Strobogrammatic number Strobogrammatic number A strobogrammatic number is a number whose numeral is rotationally symmetric, so that it appears the same when rotated 180 degrees. In other words, the numeral looks the same right-side up and upside down (e.g., 69, 96, 1001). A strobogrammatic prime is a strobogrammatic number that is also a prime number, i.e., a number that is only divisible by one and itself (e.g., 11). It is a type of ambigram, words and numbers that retain their meaning when viewed from a different perspective, such as palindromes. When written using standard characters (ASCII), the numbers, 0, 1, 8 are
Infinity on High ten. In its 31st chart week it broke into the top ten again where it remained for another six weeks in a row, accumulating a total of thirteen weeks in the top ten. The CD was certified Double Platinum by the Australian Recording Industry Association (ARIA), denoting shipments of 140,000 copies. "Infinity on High" debuted at number one in New Zealand, and remained at the top position for six consecutive weeks, logging a total of thirty-seven chart weeks, making it the fifth longest chart sitter on the New Zealand charts in 2007. After marking its first twelve weeks in the