19111986

19111986 is an eight-digit decimal number that is commonly interpreted as a date when written without separators. In day–month–year notation, it represents 19 November 1986. In ISO 8601 format, the same date is written as 1986-11-19. In the United States, a month–day–year reading with separators would yield 11/19/1986, illustrating how date formats vary by region and can cause ambiguity when digits are presented without clear separators.

Beyond calendar use, 19111986 may appear as a numeric identifier in databases, file names, or cataloging schemes where digits are concatenated. As a numeric value, it equals 19,111,986 and is an even number, divisible by 2. Its fixed digit sequence also means it sorts predictably when used as a string or as a number in simple data structures.

In broader context, 19111986 is primarily notable as a date representation rather than as a standalone concept or title. Its recognition depends on the formatting conventions of the locale or system in which the eight digits are encountered.