Huszonnyolc

Huszonnyolc is the Hungarian word for the cardinal number 28. It is used in counting, quantities, dates, and enumerations, and forms part of the standard sequence of the 20s in Hungarian numerals.

Etymology and formation: In Hungarian, numbers in the 20s are built from the combining stem huszon- with the unit. Huszonnyolc therefore means twenty-eight, formed from húsz (twenty) and nyolc (eight) with the linking form huszon- used for numbers from twenty-one to twenty-nine. The word is a fixed cardinal numeral and does not change its spelling in typical usage when modifying nouns.

Mathematical properties: 28 is a composite number with prime factorization 2^2 × 7. Its divisors are 1, 2, 4, 7, 14, and 28. It is a perfect number, since the sum of its proper divisors (1 + 2 + 4 + 7 + 14) equals 28. In addition, 28 is a triangular number, being the sum of the integers 1 through 7 (7 × 8 / 2).

Usage and forms: As a cardinal numeral, huszonnyolc precedes the noun it modifies, for example huszonnyolc ember (twenty-eight people). In ordinal form, it becomes huszonnyolcadik to indicate 28th. When rendered in other numeral systems, 28 is XXVIII in Roman numerals, 11100 in binary, and 1C in hexadecimal.

See also: In language, huszonnyolc is commonly encountered in everyday counting, ages, dates, and lists, and is part of the standard Hungarian numeration for the twenties.

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