Properties of the Number 86823

Eighty-Six Thousand Eight Hundred Twenty-Three

Basics

Value: 86822 → 86823 → 86824

Parity: odd

Prime: No

Previous Prime: 86813

Next Prime: 86837

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 × 877

Divisors: 1, 3, 9, 11, 33, 99, 877, 2631, 7893, 9647

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001100100111

Octal: 251447

Duodecimal: 422B3

Hexadecimal: 15327

Square: 7538233329

Square Root: 294.6574282111347

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

Row sums of number triangle A185962. A185963

Expansion of (1-x)/(1-x+2·x²-x³). A78019

a(0)=-1, a(1)=0, a(2)=1, a(n) = a(n-1) - 2·a(n-2) + a(n-3). A141576

Coefficient of x² in the n-th cyclotomic polynomial. (The same as the coefficient of x^φ(n-2) ). A86823