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19 Miscellaneous
1 e 18
exa
E
10ˆ18
1,000,000,000,000,000,000
one quintillion
1 e 15
peta
P
10ˆ15
1,000,000,000,000,000
one quadrillion
1 e 12
tera
T
10ˆ12
1,000,000,000,000
one trillion
1 e 9
giga
G
10ˆ9
1,000,000,000
one billion (see note) US Billion = 10^9
1 e 6
mega
M
10ˆ6
1,000,000
one million UK Billion = 1^12
1 e 3
kilo
K
10ˆ3
1,000
one thousand
1 e 2
hecto
h
10ˆ2
100
one hundred
1 e 1
deka
da
10ˆ1
10
ten
1 e -1
deci
d
10ˆ-1
0.1
one-tenth
1 e -2
centi
c
10ˆ-2
0.01
one-hundredth
1 e -3
milli
m
10ˆ-3
0.001
one-thousandth
1 e -6
micro
10ˆ-6
0.000 001
one-millionth
1 e -9
nano
n
10ˆ-9
0.000 000 001
one-billionth
1 e -12
pico
p
10ˆ-12
0.000 000 000 001
one-trillionth
1 e -15
femto
f
10ˆ-15
0.000 000 000 000 001
one-quadrillionth
1 e -18
atto
a
10ˆ-18
0.000 000 000 000 000 001
one-quintillionth

 

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