Properties of the Number 26806

Twenty-Six Thousand Eight Hundred Six

Basics

Value: 26805 → 26806 → 26807

Parity: even

Prime: No

Previous Prime: 26801

Next Prime: 26813

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 13 × 1031

Divisors: 1, 2, 13, 26, 1031, 2062, 13403, 26806

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100010110110

Octal: 64266

Duodecimal: 1361A

Hexadecimal: 68b6

Square: 718561636

Square Root: 163.72537982854095

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

Expansion of 1/(1 - x³ - x⁴ - x⁵ + x⁸). A225482

Column 5 of array illustrated in A089574 and related to A034261. A107600

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood. A270452

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 305", based on the 5-celled von Neumann neighborhood. A271162

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of the n*(k+1) boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of edges in the resulting planar graph. A367324

a(n) = number of numbers k such that only one partition of n has least part k. A26806