421000

421000 is a positive integer that appears frequently in numerical contexts. It is one hundred and twenty-one units larger than 420879. The number is even and ends in the digit zero, making it divisible by 2, 4, 5, and 10. In its prime factorization, 421000 equals 2³ × 5³ × 421, where 421 is a prime number. Because of this factorization, 421000 has a total of twenty-one positive divisors.

In decimal notation, 421000 is written with a leading digit of four, followed by the digits two and one, and three zeros. The sum of its digits is 4 + 2 + 1 + 0 + 0 + 0 = 7. Its place values are 400000 + 20000 + 1000 + 0 + 0 + 0. The number is commonly used as a thousand-based unit; for instance, it can denote 421,000 units of an item, 421,000 meters, or 421,000 people in demographic data.

In various contexts, 421000 may serve as an identifier, such as a unique product code, a student identification number, or a reference number in databases. Because it is a rounded figure ending in three zeros, it is often chosen to indicate a magnitude close to four hundred thousand in financial statements and statistical reports.