Properties of the Number 82400

Eighty-Two Thousand Four Hundred

Basics

Value: 82399 → 82400 → 82401

Parity: even

Prime: No

Previous Prime: 82393

Next Prime: 82421

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ⁵ × 5 ² × 103

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10100000111100000

Octal: 240740

Duodecimal: 3B828

Hexadecimal: 141e0

Square: 6789760000

Square Root: 287.0540018881465

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

a(1)=3, a(2)=2, a(n)=3·a(n-1) + 2·a(n-2). A189736

a(n) = φ(A291789(n)). A291805

a(n) = ∑_{k=0..floor(n/3)} 2^k * binomial(2·k+1,2·n-6·k+1). A387769

Numbers k such that 2^k + 3^k-1 is prime. A82400

Number of n X 6 binary arrays with each 1 adjacent to exactly two other 1's. A183327