Properties of the Number -205803

Two Hundred Five Thousand Eight Hundred Three

Basics

Value: -205804 → -205803 → -205802

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 1759

Divisors: 1, 3, 9, 13, 39, 117, 1759, 5277, 15831, 22867

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -110010001111101011

Octal: -621753

Duodecimal: -9B123

Hexadecimal: -323eb

Square: 42354874809

Square Root: 453.6551553768567

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)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor. A205520

Number of (n+1)X4 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor. A205515

Least k such that first k terms of A022303 contain n more 1's than 2's. A25517

Number of (n+1)X(n+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor. A205512