2006639

2006639 is a natural number. It follows 2006638 and precedes 2006640.

In mathematics, 2006639 is an odd integer. The sum of its digits is 26, so it is not divisible by 3 or 9. It ends with 9, and it is not divisible by 2 or 5. Beyond these basic properties, there is no widely recognized mathematical significance attached to this specific number.

In information management and cataloging, 2006639 may be used as an example of a seven-digit identifier. Numeric identifiers of this length are common in large databases, inventories, and digital libraries, where they function as primary keys, accession numbers, or catalog entries. The exact object or record associated with the identifier depends on the database or collection in use; there is no universal subject designated by 2006639.

Outside formal databases, 2006639 could also appear as a model number, order code, or serial number in various manufacturing or logistical contexts. As with many numeric identifiers, its meaning is determined by the system in which it appears.

See also: 2006638, 2006640, identifiers, database indexing.

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