| 557 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 452 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 430 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 389 | A New Dictionary of Kanji Usage |
| 551 | Classic Nelson (Andrew Nelson) |
| 868 | Essential Kanji (P.G. O’Neill) |
| 335 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2252 | Japanese Names (P.G. O’Neill) |
| 382 | Kanji and Kana (Spahn and Hadamitzky) |
| 383 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 650 | Kanji in Context (Nishiguchi and Kono) |
| 136 | Kodansha Compact Kanji Guide |
| 192 | Kodansha Kanji Dictionary (Jack Halpern) |
| 125 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 148 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 992 | Les Kanjis dans la tete (Yves Maniette) |
| 1178 | Morohashi |
| 170 | New Japanese English Character Dictionary (Jack Halpern) |
| 321 | New Nelson (John Haig) |
| 983 | Remembering The Kanji (James Heisig) |
| 1058 | Remembering The Kanji, 6th edition (James Heisig) |
| 462 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 622 | Tuttle Kanji Cards (Alexander Kask) |
hundred million, 10**8
- On:
- オク
Jōyō kanji, taught in grade 4
JLPT level N2
716 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 億 【オク】 hundred million, 100,000,000, 10^8
- 億万 【オクマン】 millions and millions
- 十億 【ジュウオク】 1,000,000,000, billion
- １００億 【ヒャクオク】 10,000,000,000, ten billion
Readings
- Japanese names:
- お
- Korean:
- eog
Spanish
- cien millones
- 10 elevado a 8
Portuguese
- cem milhões
- 10 elevado a 8
French
- cent millions
- 10**8
| 2158 | 2001 Kanji |
| 2a13.6 | The Kanji Dictionary |
| 1-2-13 | SKIP code |
| 2023.6 | Four corner code |
| 1-18-15 | JIS X 0208-1997 kuten code |
| 5104 | Unicode hex code |