Properties of the Number -26684

Twenty-Six Thousand Six Hundred Eighty-Four

Basics

Value: -26685 → -26684 → -26683

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 7 × 953

Divisors: 1, 2, 4, 7, 14, 28, 953, 1906, 3812, 6671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100000111100

Octal: -64074

Duodecimal: -13538

Hexadecimal: -683c

Square: 712035856

Square Root: 163.3523798418621

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 vertices formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius. A371254

Number of secondary structures of size n having no stacks of length 1. A202840

Number of partitions of n with difference 4 between the number of odd parts and the number of even parts, both counted without multiplicity. A242695

Irregular triangle read by rows: rows are partial alternating sums of rows of A297191. A297193

Number of 5-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions. A187379

Left-hand half of triangle A297193. A297194

Symmetrical form of A039683 using polynomials: p(x,n)=Product[x - (2·i), {i, 0, Floor[n/2]}]/x; t(n,m)=coefficients(p(x,n)+xⁿ*p(1/x,n)); t(n,m)=A039683(n,m)+A039683(n,n-m). A155718