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319 = 11 × 29. 319 is the sum of three consecutive primes ... [17] centered heptagonal number, [4] number of surface points on a cube with edge-length 9. [68] 387
A cube has all multiplicities divisible by 3 ... An economical number has been defined as a frugal number, ... 319: 11·29 320: 2 6 ·5 321 − 340 321: 3·107 322:
It is the tenth centered cube number (a number that counts the points in a three-dimensional pattern formed by a point surrounded by concentric cubical layers of points), the nineteenth dodecagonal number (a figurate number in which the arrangement of points resembles the shape of a dodecagon), the thirteenth 24-gonal and the seventh 84-gonal ...
The cube is also the number multiplied by its square: n 3 = n × n 2 = n × n × n. The cube function is the function x ↦ x 3 (often denoted y = x 3) that maps a number to its cube. It is an odd function, as (−n) 3 = −(n 3). The volume of a geometric cube is the cube of its side length, giving rise to the
Equivalently, an elementary cube is any translate of a unit cube [,] embedded in Euclidean space (for some , {} with ). [3] A set X ⊆ R d {\displaystyle X\subseteq \mathbf {R} ^{d}} is a cubical complex (or cubical set ) if it can be written as a union of elementary cubes (or possibly, is homeomorphic to such a set).
A triangular number or triangle number counts objects arranged in an equilateral triangle. Triangular numbers are a type of figurate number , other examples being square numbers and cube numbers . The n th triangular number is the number of dots in the triangular arrangement with n dots on each side, and is equal to the sum of the n natural ...
318 is the natural number following 317 and preceding 319. [1] In mathematics. 318 is: ... a nontotient [3] the number of posets with 6 unlabeled elements [4]
A more restrictive taxicab problem requires that the taxicab number be cubefree, which means that it is not divisible by any cube other than 1 3. When a cubefree taxicab number T is written as T = x 3 + y 3, the numbers x and y must be relatively prime. Among the taxicab numbers Ta(n) listed above, only Ta(1) and Ta(2) are cubefree taxicab numbers.