Last Updated
：2026/01/04
百正
Hiragana
ひゃくせい
Numeral
number
Japanese Meaning
10の42乗（1の後に0が42個続く数）を表す、日本語の古い大数の単位。近世以降の日本語で用いられた数詞。
Easy Japanese Meaning
とてもおおきいかずで、正というたんいの百ばいにあたる
Chinese (Simplified) Meaning
日本近世以来的数词，表示10的42次方。 / 相当于英澳旧式数名“septillion”。
Chinese (Traditional) Meaning
10 的 42 次方 / 一百正（「正」為 10 的 40 次方） / 舊式英式／澳式長級數制的「septillion」
Korean Meaning
10의 42제곱을 나타내는 수 / 일본의 거대수 체계에서 10^42를 뜻하는 수명칭 / 영국·호주 구식 체계의 셉틸리언(10^42)에 해당
Vietnamese Meaning
Số 10^42; tương ứng “septillion” trong tiếng Anh cổ (thang dài). / Thuật ngữ số lớn trong tiếng Nhật; bằng 100 “正” (10^42).
Tagalog Meaning
Bilang na 10^42 / Septilyon (makaluma sa Britanya/Australia) / Sandaang “正” sa bilangan ng Hapon
Sense（1）
A billion quintillion, 10⁴², or a septillion of dated British or Australian English, in modern Japanese since 17th century.
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
A billion quintillion, 10⁴², or a septillion of dated British or Australian English, in modern Japanese since 17th century.
See correct answer
百正
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There are more than a billion quintillion stars in this galaxy.
There are more than a billion quintillion stars in this galaxy.
See correct answer
この星系には百正以上の星が存在しています。
Japanese - English
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