it means billions
Mega means Millions
Kilo means thousands
Pico is the prefix in most English speaking countries. Atto is the prefix in most European countries. A trillion or a trillionth in the US has a different numerical value than the same trillion or trillionth in a European country.
The prefix which means one hundred is hecto-. An example would be, "When the dentist saw the condition of her teeth, he wondered if she had consumed a hectoliter of soda". In this sentence, the dentist wondered if the patient had consumed a hundred liters of soda.
nan0-
kilogram
The SI prefix tera- (meaning 1012) has the homophone "terra", from the Latin for "earth". This is used in the word terraform, material terracotta, and the Latin name of planet Earth, Terra.
The numerical meaning of the SI prefix "kilo" is 1000. It represents a factor of 10^3 (10 raised to the power of 3). For example, one kilogram is equal to 1000 grams.
The SI prefix for one billion is giga, denoted by the symbol G. It represents 10^9 in the metric system.
Centi- is the SI prefix for 0.01.
Pico is the prefix in most English speaking countries. Atto is the prefix in most European countries. A trillion or a trillionth in the US has a different numerical value than the same trillion or trillionth in a European country.
The SI prefix for million is "Mega".
In the SI (metric) system of units, the prefix "giga..." means "a billion of them".
Micro
Giga is the SI prefix representing 109, or billions. 1Gm, one gigametre, equals 1 billion metres, 1 000 000 000m.
KL
The SI prefix meaning of 0.001 is "milli-". This prefix denotes a factor of 1/1000, so 0.001 can be written as 1 milliunit.
In SI units, the prefix "giga" means 10 to the 9th power and the prefix "kilo" means 10 to the 3rd power. The actual homework problem... er, question... should be easy to solve from the above information.
Your question contains mixed units. billion is not an SI prefix, its numerical place as a multiplier is taken by Giga, 10 to the power 9. Peta is 10**15, and Exa is 10**18. [** means to the power of.] with the new proper units, you may do the math.