28 (number)

← 27 28 29 →
Cardinaltwenty-eight
Ordinal28th
(twenty-eighth)
Factorization22 × 7
Divisors1, 2, 4, 7, 14, 28
Greek numeralΚΗ´
Roman numeralXXVIII, xxviii
Binary111002
Ternary10013
Senary446
Octal348
Duodecimal2412
Hexadecimal1C16

28 (twenty-eight) is the natural number following 27 and preceding 29.

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