11191997

11191997 is an eight-digit integer commonly read as a calendar date in the mmddyyyy format, representing November 19, 1997. In ISO 8601, the same day is written as 1997-11-19. The sequence is sometimes used as a compact date-stamp or identifier in databases, filenames, or sports statistics where a single numeric timestamp is preferred.

Numerically, 11191997 equals 11,191,997. It is not divisible by 2 or 5, and the sum of its digits is 38, so it is not divisible by 3. Its prime factorization is not immediately evident without calculation. The number does not form a palindrome and lacks an obvious mathematical significance beyond being a date representation and a unique numeric string.

Historically, there is no widely recognized event universally associated with the eight-digit string 11191997. Its relevance is typically contextual, arising from personal records, archival naming, or systems that encode dates in MMDDYYYY format. As a date, it sits in the late 1990s, a period marked by rapid growth of the internet, digital documentation, and the transition to new data formats.

See also: date formats, ISO 8601, MMDDYYYY.