4448221615

4448221615 is a positive integer in base-10 notation. Its decimal representation is the ten-digit sequence 4-4-4-8-2-2-1-6-1-5.

In mathematics, the number is composite. It is not even and ends with 5, so it is divisible by 5. Dividing yields 4448221615 / 5 = 889,644,323. The sum of the digits is 37, which is not a multiple of 3, so the number is not divisible by 3. The last two digits are 15, so it is not divisible by 25. Therefore, the number is composite with a factor 5 and a cofactor of 889,644,323, though no further factorization is provided here.

In other contexts, such numeric strings are commonly used as identifiers, serial numbers, or catalog numbers in databases and records. Without additional context, 4448221615 has no widely known historical or mathematical significance beyond its basic properties.

See also: divisibility rules; natural numbers; composite numbers.