Properties of the Number 86865

Eighty-Six Thousand Eight Hundred Sixty-Five

Basics

Value: 86864 → 86865 → 86866

Parity: odd

Prime: No

Previous Prime: 86861

Next Prime: 86869

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 5791

Divisors: 1, 3, 5, 15, 5791, 17373, 28955, 86865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10101001101010001

Octal: 251521

Duodecimal: 42329

Hexadecimal: 15351

Square: 7545528225

Square Root: 294.7286887970019

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 n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 6. A245146

Given a distribution of n balls, labeled 1,...,n, among n unlabeled contents-ordered urns, arrange the nonempty urns in increasing order of their initial elements: U₁,...U_k and sum the quantities (i-1)(card U_i - 1) for i=1,...,k to get the "weight" of this distribution. These numbers represent the number of distributions of even weight minus the number with odd weight. A89656

Numbers n such that 2·10ⁿ+11 is prime. A86865