- Traditional Chinese Character(HanT):
四億人
- Simplified Chinese Character(HanS):
四亿人
- Bopomofo(Mandarin Phonetic Symbols): ㄙˋ ㄧˋ ㄖㄣˊ (ㄙㄧㄖ)
- Bopomofo(Zhuyin Keyboard Input/IME): n4u4bp6
- (ASCII) Hanyu Pinyin: "siyiren" "Si4Yi4Ren2" "Si4 Yi4 Ren2" (SYR)
- (Latin) Hànyǔ Pīnyīn: SìYìEr [ Sì Yì Er ]
- (英文翻譯) English Translation: "400 million people"
- (西語翻譯) Traducción Español: "400 millones de personas"
- (日文翻譯) 日本語翻訳: "4億人"