19272011

19272011 is the eight-digit integer 19,272,011 in decimal notation. It is a composite number, since it factors as 11 × 1,752,001. The digit sum is 23, which shows it is not divisible by 3, and it does not end in 0 or 5, so it is not divisible by 2 or 5. The number is divisible by 11, as shown by the alternating-sum test: 1 − 9 + 2 − 7 + 2 − 0 + 1 − 1 = −11, a multiple of 11. The cofactor is 1,752,001, which is not divisible by 11 itself (its alternating sum is −2), so 11 does not divide the cofactor again.

Interpretations of the string can vary. The sequence can be read as a concatenation of two four-digit numbers, 1927 and 2011, which are years in the 20th and 21st centuries, but there is no universally recognized significance attached to combining them as 19272011. In mathematical contexts, the value is primarily notable as an example of a composite eight-digit number with a straightforward factorization by 11, and as a demonstration of the divisibility-by-11 rule.

In computing or data contexts, 19272011 may appear as a sample numeric identifier or as part of test data, but it does not correspond to a standard date format like YYYYMMDD, and there is no widely recognized event or entity named 19272011. See also: divisibility rules, 11 (number).