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Short description: Decimal unit prefix
Yotta is the largest decimal unit prefix in the metric system, denoting a factor of 1024 (1000000000000000000000000), or one septillion. It has the symbol Y. The prefix name is derived from the Latin octo[1] or the Ancient Greek ὀκτώ (oktṓ), meaning eight, because it is equal to 10008. It was added as an SI prefix to the International System of Units (SI) in 1991.[2]
Usage examples
- The mass of the Earth is 5,972.6 yottagrams (2.1068×1026 oz).[3]
- The mass of the oceans is about 1.4 yottagrams (4.9×1022 oz).[4]
- The total power output of the Sun is approximately 385 yottawatts (5.16×1023 hp).[5]
- The observable universe is estimated to be 880 yottametres (5.5×1023 mi) in diameter.[6]
- One yottabyte (YB) is a unit of digital information or information storage capacity for one septillion bytes or 1000 zettabytes. The yobibyte (YiB) is a related unit that uses a binary prefix and means 10248 bytes, which is approximately 1.2 septillion bytes.
Prefix | Base 10 | Decimal | English word | Adoption[nb 1] | |||
---|---|---|---|---|---|---|---|
Name | Symbol | Short scale | Long scale | ||||
yotta | Y | 1024 | 1000000000000000000000000 | septillion | quadrillion | 1991 | |
zetta | Z | 1021 | 1000000000000000000000 | sextillion | trilliard | 1991 | |
exa | E | 1018 | 1000000000000000000 | quintillion | trillion | 1975 | |
peta | P | 1015 | 1000000000000000 | quadrillion | billiard | 1975 | |
tera | T | 1012 | 1000000000000 | trillion | billion | 1960 | |
giga | G | 109 | 1000000000 | billion | milliard | 1960 | |
mega | M | 106 | 1000000 | million | 1873 | ||
kilo | k | 103 | 1000 | thousand | 1795 | ||
hecto | h | 102 | 100 | hundred | 1795 | ||
deca | da | 101 | 10 | ten | 1795 | ||
100 | 1 | one | – | ||||
deci | d | 10−1 | 0.1 | tenth | 1795 | ||
centi | c | 10−2 | 0.01 | hundredth | 1795 | ||
milli | m | 10−3 | 0.001 | thousandth | 1795 | ||
micro | μ | 10−6 | 0.000001 | millionth | 1873 | ||
nano | n | 10−9 | 0.000000001 | billionth | milliardth | 1960 | |
pico | p | 10−12 | 0.000000000001 | trillionth | billionth | 1960 | |
femto | f | 10−15 | 0.000000000000001 | quadrillionth | billiardth | 1964 | |
atto | a | 10−18 | 0.000000000000000001 | quintillionth | trillionth | 1964 | |
zepto | z | 10−21 | 0.000000000000000000001 | sextillionth | trilliardth | 1991 | |
yocto | y | 10−24 | 0.000000000000000000000001 | septillionth | quadrillionth | 1991 | |
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See also
References
- ↑ Proceedings of the 19th CGPM (1991), page 80. Retrieved 2022-02-16
- ↑ "Resolution 4 of the 19th CGPM (Conférence Générale des Poids et Mesures)". BIPM (Bureau International des Poids et Mesures). http://www.bipm.org/en/CGPM/db/19/4/.
- ↑ Williams, David R.. "Earth fact sheet". NASA. http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html.
- ↑ Kennish, Michael J. (2001). Practical handbook of marine science. Marine science series (3rd ed.). CRC Press. p. 35. ISBN 0-8493-2391-6.
- ↑ "WolframAlpha: the Sun's total power output in yottawatts". https://www.wolframalpha.com/input/?i=the+Sun%27s+total+power+output+in+yottawatts.
- ↑ "WolframAlpha: size of universe in yottameters". https://www.wolframalpha.com/input/?i=size+of+universe+in+yottameters.
External links