Millionth

One millionth is equal to 0.000 001, or 1 x 10⁻⁶ in scientific notation. It is the reciprocal of a million, and can be also written as 1⁄1,000,000.^[1] Units using this fraction can be indicated using the prefix "micro-" from Greek, meaning "small".^[2] Numbers of this quantity are expressed in terms of μ (the Greek letter mu).^[3]

"Millionth" can also mean the ordinal number that comes after the nine hundred, ninety-nine thousand, nine hundred, ninety-ninth and before the million and first.^[4]

References

^ Laidler, Keith J. (30 December 2011), Science and Sensibility: The Elegant Logic of the Universe, Prometheus Books, p. 15, ISBN 9781615927036.
^ The American Heritage Guide to Contemporary Usage and Style, Houghton Mifflin Company, 2005, p. 300, ISBN 9780618604999.
^ Handley, Brett; Coon, Craig; Marshall, David (2011), Principles of Engineering, Cengage Learning, p. 212, ISBN 9781435428362.
^ Hurford, James R. (1994), Grammar: A Student's Guide, Cambridge University Press, p. 146, ISBN 9780521456272.

Preceded by Thousandth	Decimal orders of magnitude	Succeeded by Billionth

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[1] Laidler, Keith J. (30 December 2011), Science and Sensibility: The Elegant Logic of the Universe, Prometheus Books, p. 15, ISBN 9781615927036.

[2] The American Heritage Guide to Contemporary Usage and Style, Houghton Mifflin Company, 2005, p. 300, ISBN 9780618604999.

[3] Handley, Brett; Coon, Craig; Marshall, David (2011), Principles of Engineering, Cengage Learning, p. 212, ISBN 9781435428362.

[4] Hurford, James R. (1994), Grammar: A Student's Guide, Cambridge University Press, p. 146, ISBN 9780521456272.

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v t e Orders of magnitude
Quantity	Acceleration Angular momentum Area Bit rate Charge Computing Current Data Density Energy / Energy density Entropy Force Frequency Illuminance Length Luminance Magnetic moment Magnetic field Mass Molarity Numbers Power Pressure Probability Radiation Sound pressure Specific heat capacity Speed Temperature Torque Time Voltage Volume
See also	Back-of-the-envelope calculation Best-selling electronic devices Fermi problem Powers of 10 and decades 10th 100th 1000000th Metric (SI) prefix Macroscopic scale Microscopic scale
Related	Astronomical system of units Earth's location in the Universe Cosmic View (1957 book) To the Moon and Beyond (1964 film) Cosmic Zoom (1968 film) Powers of Ten (1968 and 1977 films) Cosmic Voyage (1996 documentary) The Scale of the Universe (2010) Cosmic Eye (2012)
Category

See also

References