Properties of the Number -128801

One Hundred Twenty-Eight Thousand Eight Hundred One

Basics

Value: -128802 → -128801 → -128800

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 19 × 6779

Divisors: 1, 19, 6779, 128801

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111011100100001

Octal: -373441

Duodecimal: -62655

Hexadecimal: -1f721

Square: 16589697601

Square Root: 358.88856209135446

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

Padovan sequence (or Padovan numbers): a(n) = a(n-2) + a(n-3) with a(0) = 1, a(1) = a(2) = 0. A931

Number of n-th generation triangles in the tiling of the hyperbolic plane by triangles with angles {π/2, π/3, 0}. A96231

For n = 0, 1, 2, a(n) = n; thereafter, a(n) = 2·a(n-1) - a(n-2) + a(n-3). A5314

Expansion of 1/(1-x²-x³). A182097

Padovan's spiral numbers. A134816

Binomial transform of Padovan sequence A000931. A34943

Spiral of triangles around a hexagon. A164001

Expansion of (1 - x)/(1 - x² - x³). A78027

Expansion of (1+x)/(1-x²+x³). A124745

The number of all possible covers of L-length line segment by 2-length line segments with allowed gaps < 2. A228361