21388

The number 21388 is a natural number that follows 21387 and precedes 21389. It is an even number. In the realm of mathematics, 21388 can be expressed as a sum of two squares, for example, 104^2 + 102^2. It is divisible by 4, as the last two digits, 88, form a number divisible by 4. Its prime factorization is 2^2 * 5347. The number 5347 is a prime number.

In some contexts, numbers like 21388 might appear as identifiers in various systems. This could include serial numbers, product codes, or data entries within databases. Without specific context, the significance of 21388 remains purely numerical. It does not possess widely recognized historical, cultural, or scientific importance beyond its mathematical properties. Its occurrence is likely incidental to a particular system or enumeration rather than being intrinsically significant.