1728 (number)

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Template:Numbers 1700-1800
Cardinal One thousand,
seven hundred [and]
twenty-eight
Ordinal 1728th
Factorization 2^6 \cdot 3^3
Roman numeral MDCCXXVIII
Binary 11011000000
Octal 3300
Duodecimal 1000
Hexadecimal 6C0

1728 is the natural number following 1727 and preceding 1729. 1728 is a dozen gross, or one great gross.

[edit] In mathematics

It is the cube of 12, and as such is important in the duodecimal number system. 1728 famously occurs in the algebraic formula for the j-invariant of an elliptic curve. As a consequence, it is sometime called a Zagier as a pun on the Gross-Zagier theorem.


For the year AD 1728, see 1728.