- published: 01 Oct 2009
- views: 22983
26 (twenty-six) is the natural number following 25 and preceding 27.
26 is the only positive integer that is one greater than a square (Failed to parse (Missing texvc executable; please see math/README to configure.): 25 = 5^2 ) and one less than a cube (Failed to parse (Missing texvc executable; please see math/README to configure.): 27 = 3^3 ).
A rhombicuboctahedron has twenty-six sides.
When a 3x3x3 cube is made of twenty-seven unit cubes, twenty-six of them are visible parts of the exterior layer of cubes.
There are 26 sporadic groups.
Twenty-six is a repdigit in base three (222) and in base twelve (22).
In base ten, 26 is the smallest number that is not a palindrome to have a square(26^2=676) which is a palindrome.
The jersey number 26 has been retired by several North American sports teams in honor of past playing greats (or in one case, an owner):
Twenty-six is:
A number is a mathematical object used to count and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.
Mathematical operations are certain procedures that take one or more numbers as input and produce a number as output. Unary operations take a single input number and produce a single output number. For example, the successor operation adds one to an integer, thus the successor of 4 is 5. Binary operations take two input numbers and produce a single output number. Examples of binary operations include addition, subtraction, multiplication, division, and exponentiation. The study of numerical operations is called arithmetic.
A notational symbol that represents a number is called a numeral. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (e.g., ISBNs).