Computer Theory : SI Suffix

SI 接頭辞

10進				2進
記号	読み	値		記号	読み	値
K	Kiro	10³ 1,000 千		Ki	Kibi	2¹⁰ 1,024
M	Mega	10⁶ 1,000,000 百万		Mi	Mebi	2²⁰ 1,048,576
G	Giga	10⁹ 1,000,000,000 十億		Gi	Gi	2³⁰ 1,073,741,824
T	Tera	10¹² 1,000,000,000,000 兆		Ti	Tebi	2⁴⁰ 1,099,511,627,776
P	Peta	10¹⁵ 1,000,000,000,000,000 千兆		Pi	Pei	2⁵⁰ 1,125,899,906,842,624
E	Exa	10¹⁸ 1,000,000,000,000,000,000 百京		Ei	Exbi	2⁶⁰ 1,152,921,504,606,846,976
Z	Zeta	10²¹ 1,000,000,000,000,000,000,000 十垓		Zi	Zebi	2⁷⁰ 1,180,591,620,717,411,303,424
Y	Yota	10²⁴ 1,000,000,000,000,000,000,000,000 杼^*		Yi	Yobi	2⁸⁰ 1,208,925,819,614,629,174,706,176

補足）2¹²⁸ ＝ 340,282,366,920,938,463,463,374,607,431,768,211,456 ≒ 340澗
340 澗	2,823 溝	6,692 穣	0,938 杼	4,634 垓	6,337 京	4,607 兆	4,317 億	6,821 万	1,456

*) 正しくは「のぎへん（禾）に予」𥝱