Mathematicians, engineers and scientists avoid the words billion and billionth because they have different meanings in different countries.
e.g. one billion (US) 109. one billion (UK) 1012.
So, mathematicians use exponents as shown above.
Engineers and scientists mostly use SI multipliers.
106 = Mega, 109 = Giga, 1012 = Tera
10-6 = micro, 10-9 = nano, 10-12 = pico.
If you are American, a billionth is 10-9 . If you are a Brit it is 10-12.
Small it is somen' ridiculous like a billionth of a mm
The smallest unit of length is a Planck Length. This is the equivalent of a millionth of a billionth of a billionth of a billionth of a centimeter. This is too small for the human eye to see without assistance like a microscope.
1 billionth = 10-9 (1 billionth)4 = (10-9)4 = 10-36 That's 0.000 000 000 000 000 000 000 000 000 000 000 001
really small. Divided into a billion parts. A nanometer is one billionth of a meter. A nanosecond is one billionth of a second. A nanocraig would be one billionth of some guy named Craig.Ex. if you have 650 nm it would be equivalent to 650 x10^-9 m
A billionth is one of a billion equal parts.
billionth is 1,000,000,000 millionth is 1000000
A nanometre is a billionth of a metre. So 10 nm = 10-8 metres.
one-billionth of a second is a nanosecond.
Nano-, a nanometer is a billionth of a meter
One billionth of a metre is a nanometre.
9; one billionth is 1,000,000,000.
One ten-billionth.