28
natural number
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Summary
28 is a positive integer[1]. 28 ranks in the top 8% of positive integer entities by monthly Wikipedia readership (2,049 views/month).[2]
Key Facts
- Instance of: perfect number[3], triangular number[4], even number[5], centered nonagonal number[6], hexagonal number[7], magic number[8], composite number[9]
- Follows: 27[10]
- Followed by: 29[11]
- Commons category: 28 (number)[12]
- Unicode character: ㉘[13]
- Topic's main category: Category:28 (number)[14]
- Numeric value: 28[15]
- Code: ௨௰௮[16], ௨௮[17], XXVIII[18], 𒎙𒐜[19], 11100[20], 1001[21], 130[22], 103[23], 44[24], 40[25], 31[26], 34[27], 28[28], 26[29]
- Prime factor: 2[30], 7[31]
- Maintained by WikiProject: WikiProject Mathematics[32]
- Number of decimal digits: 2[33]
Why It Matters
28 has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[34] 28 is known by 48 alternative names across languages and contexts.[35]