4200000000

4200000000 is an integer represented by the numeral 4, followed by nine zeros. It can be written in scientific notation as 4.2 x 10^9. In the short scale, commonly used in English-speaking countries, this number is read as four billion two hundred million. In the long scale, used in some European countries, it would be read as four thousand two hundred million.

The number 4,200,000,000 is a composite number. Its prime factorization is 2^9 * 3^2 * 5^9 * 7. It has a large number of divisors due to the presence of multiple prime factors with high exponents.

In terms of magnitude, 4.2 billion is a significant number. For instance, the estimated world population is currently around 8 billion people, making 4.2 billion a substantial fraction of humanity. Various economic figures, such as national debts or large corporate revenues, can also be in the billions. In astronomy, distances are often measured in billions of light-years, though 4.2 billion light-years represents a very distant region of the observable universe. This number is also larger than the number of seconds in a century.