6400000000

6400000000 is the integer representing six billion four hundred million. In scientific notation, it is written as 6.4 x 10^9. This number is equivalent to sixty-four hundred million or six and four tenths billion. It is a composite number, meaning it has factors other than 1 and itself. Its prime factorization is 2^9 * 5^9.

The number 6,400,000,000 can appear in various contexts, such as large quantities of currency, populations, or distances measured in very small units. For instance, if a currency was valued at 1 unit per grain of sand, then 6.4 billion grains of sand would represent this amount. In computing, it might relate to memory addresses or data storage capacities, although typically memory is measured in powers of two, such as gigabytes (2^30 bytes).

When discussing magnitudes, 6.4 billion is a significant number. It is larger than the current estimated world population, which is around 8 billion. It is smaller than the estimated number of stars in the Milky Way galaxy, which is in the hundreds of billions. Understanding large numbers like 6,400,000,000 helps in comprehending scale and proportion in scientific, economic, and demographic discussions.