Prefix 10^27

Until November 18, 2022, the standard SI prefix system only extended to yotta- = 1024. As of Nov 18, 2022, ronna- was included in the official SI prefix for 1027(octillion).Resolution 3 of the 27th CGPM (2022) Other names have been proposed as follows.
Prefix (1027)	Symbol	Reciprocal (10-27)	Symbol 	Source
Ronna- 	R 	Ronto- 	r 	SI prefix
Nina- 	N 	Ninto- 	nConflicts with the symbol for nano- 	By Jim BlowersExtension of SI prefix system by Jim Blowers
Xenna- 	X 	Xento- 	x 	By Sbiis SaibianSEPS , Jonathan BowersIllion Numbers
Novetta- 	No 	Novemo- 	no 	By Robert MunafoEMPS
Umpty- 	U 	 	 	In Sandcastle BuilderSandcastle Builder
Xona- 	X 	Xonto- 	x 	In Blowers' old systemNon-Canonical SI Prefixes
Xenna- 	 	Xento- 	 	By NumLynx
Xova- 	 	Xovi- 	 	By André JoyceAndré Joyce's Googology page
Nova- 	 	Novo- 	 	By Aarex Tiaokhiao
Bronta- 	B 	Brimto- 	b 	By Cookie FonsterPointless Large Number Stuff
Harpi- 	HA 	Harpo- 	haConflicts with the symbol for , non-SI unit that is accepted for use with the SI	By Morgan Burke2.2.3 - Non-Canonical SI Prefixes (after )
Bronto- 	B 	 	 	By Lawrence Hollom, and very often on the InternetExtremely Big Numbers
Xina- 	X 	Xito- 	x 	In Aarex's old system
Xenta- 	X 	Xenno- 	x 	By Jeff K. AronsonRobert Munafo's SI Prefixes
Nea- 	N 	Syto- 	sConflicts with the symbol for second 	By Alex Lopez-Ortizsci.math FAQ Names of Large Numbers
Nova- 	N 	Novo- 	n 	By Gerard MichonPunch Lines - Funny Prefixes
Xotta- 	 	Xocto- 	 	By H. Paul ShuchUnofficial SI PrefixesShuch, H. Paul. The large and the small of it (Letter). Science News 143(14): 211, April 3, 1993
Hella- 	H 	 	 	Alpha examples (from Northern California slang "")
Xenna- 	X 	Xono- 	 	By Trakaplexhttps://trakaplex.wordpress.com/2021/02/01/extended-number-prefixes/
Xina 	 	xovo 	 	By MutiSoulExtended Si Prefix System 2.0 retrieved at UTC 4:50 on November 7th in 2021.
Xera- 	X 	 	 	In a Wikipedia-originated hoax notable for an appearance in the New York TimesMilitary Computer Sets Record - New York Times
Netta- 	N 	Nevo- 	nConflicts with the symbol for nano- 	By XRQ CORPORATIONXRQ CORPORATION's Prefixes and Reciprocals
Ennala- 	 	Ennuto- 	 	By SeveralLegend9998SeveralLegend9998's New Googology Series (Retrieved 2024-06-17)
==Notes==
== Sources==
== See also ==
Category:Prefixes
Category:Rare prefixes