18 (dir-powurdo) nbozini dalbo dir-bawúlo 17 dede dir-nbonu 19.
18
positive integer, abundant number, even number, heptagonal number, pentagonal pyramidal number, composite number, harshad number| Follows | 17  |
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| Followed by | 19 |
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| Prime factor | 2, 3 |
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| Unicode character | ⒅, ⓲, ⑱, ⒙, 𝋲 |
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