28
positive integer, perfect number, triangular number, even number, centered nonagonal number, hexagonal number, magic number, composite number| Prime factor | 2, 7  |
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| Unicode character | ㉘  |
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Hàuyàa ka fìifeeɗu (28) ayam làmba ne ma mbèesu. Dita ne lamba ma hàuyàa ka fìifēɗu a lìssafi.