Properties of the Number 18012

Eighteen Thousand Twelve

Basics

Value: 18011 → 18012 → 18013

Parity: even

Prime: No

Previous Prime: 17989

Next Prime: 18013

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 19 × 79

Divisors: 1, 2, 3, 4, 6, 12, 19, 38, 57, 76

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011001011100

Octal: 43134

Duodecimal: A510

Hexadecimal: 465c

Square: 324432144

Square Root: 134.20879255846094

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of partitions of n³ into cubes. A259792

The number of vertices formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter. A358746

Array read by antidiagonals upwards: T(n,k) = number of partitions of kⁿ into n-th powers (n>=1, k>=0). A259799

Number of triangular regions into which a figure made up of a row of n adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles. A324042

Number of partitions of n² into positive cubes. A218495

Array read by antidiagonals: T(m,n) = number of m-ary words of length n with cyclically adjacent elements differing by 3 or less. A285281

Total number of isomers (nonisomorphic systems) of unbranched tri-4-catafusenes as a function of the number of hexagons (see Cyvin et al. (1996) for precise definition). A323941

Triangle giving number of unbranched catapolytetragons, read by rows. A38766

Expansion of g.f.: x⁴/((1+2·x) * (1-2·x+x²+2·x³)). A123957

Irregular triangle read by rows giving the total number of isomers (nonisomorphic systems) of unbranched k-4-catafusenes. A323942