Properties of the Number 86181

Eighty-Six Thousand One Hundred Eighty-One

Basics

Value: 86180 → 86181 → 86182

Parity: odd

Prime: No

Previous Prime: 86179

Next Prime: 86183

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 23 × 1249

Divisors: 1, 3, 23, 69, 1249, 3747, 28727, 86181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10101000010100101

Octal: 250245

Duodecimal: 41A59

Hexadecimal: 150a5

Square: 7427164761

Square Root: 293.56600620644076

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

T(n, k) = kⁿ*U(n, (1/k + k)/2) + (n + 1)^{k - 1}*U(k - 1, (1/(n + 1) + n + 1)/2), where U(n,x) is the n-th Chebyshev polynomial of the second kind, square array read by antidiagonals (n >= 0, k >= 1). A173590

G.f. A(x) satisfies A(x) = 1 + x/A(x) * (1 - A(x) + A(x)⁴). A378958

Numbers k that are a substring of (k-1)*k*(k+1). A316943

Decimal expansion of the bifurcation point B₃, the onset of an 8-cycle in the logistic equation. A86181