Properties of the Number 86440

Eighty-Six Thousand Four Hundred Forty

Basics

Value: 86439 → 86440 → 86441

Parity: even

Prime: No

Previous Prime: 86423

Next Prime: 86441

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5 × 2161

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 2161, 4322

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10101000110101000

Octal: 250650

Duodecimal: 42034

Hexadecimal: 151a8

Square: 7471873600

Square Root: 294.00680264238787

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

Generalized Catalan Numbers x⁴*A(x)² -(1-x+x⁴+x⁵+x⁶+x⁷)*A(x) + 1 =0. A23430

Probability of obtaining a run of n consecutive cards of the same color in a deck of 52, denominators. A86440

Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically. A207086

Table read by antidiagonals: T(b,n) is the number of n-step self avoiding walks on a 2D square grid confined inside a square box of dimension 2b X 2b where the walk starts at the middle of one of the box's edges. A336872