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Also known as twenty eight, twenty-eight, 28*1, 1*28, number 28, ㉘
natural number
AI overview
"28" is a natural number that comes after 27 and before 29 in the sequence of counting numbers. It is notable in mathematics as a perfect number, meaning its divisors (1, 2, 4, 7, and 14) add up exactly to 28 itself.
AI-generated from the Wikipedia summary — may contain errors.
~1 min read
Encyclopedic overview
← 20 21 22 23 24 25 26 27 28 29 → List of numbers Integers
← 0 10 20 30 40 50 60 70 80 90 →
Excerpted from Wikipedia’s “28” article, available under the CC BY-SA 4.0 licence.
Gallery (2)
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