Properties of the Number 9086

Nine Thousand Eighty-Six

Basics

Value: 9085 → 9086 → 9087

Parity: even

Prime: No

Previous Prime: 9067

Next Prime: 9091

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 11 × 59

Divisors: 1, 2, 7, 11, 14, 22, 59, 77, 118, 154

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101111110

Octal: 21576

Duodecimal: 5312

Hexadecimal: 237e

Square: 82555396

Square Root: 95.3205119583398

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 regions in regular n-gon with all diagonals drawn. A7678

4-dimensional analog of centered polygonal numbers. Also number of regions created by sides and diagonals of a convex n-gon in general position. A6522

Total sum A(n,k) of the k-th powers of lengths of ascending runs in all permutations of [n]; square array A(n,k), n>=0, k>=0, read by antidiagonals. A229001

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251088

Coefficients T(n,k) of xⁿ*y^k in the function A(x,y) that satisfies: y = ∑_n=-oo..+oo x^2·n+1 * (1 - xⁿ)ⁿ⁺¹ * A(x,y)ⁿ, as a triangle read by rows with k = 0..n for each row index n >= 0. A357400

Numbers n that have an equal number of even and odd values of A001221(k) for 1 <= k <= n. A275547

Consider the spiral of Theodorus (A072895). This sequence gives the number of k successive triangles which is closer to 360 degrees than any previous k triangles. A224269

a(n) = ∑_k=1..n k²*(floor(n/k) - 1). A279847

Maximal number of right triangles in n turns of Pythagoras's snail. A137515

Numbers n such that if x=σ(n)-τ(n)-n then n=σ(x)-τ(x)-x. A238227