Properties of the Number -222813

Two Hundred Twenty-Two Thousand Eight Hundred Thirteen

Basics

Value: -222814 → -222813 → -222812

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 19 × 1303

Divisors: 1, 3, 9, 19, 57, 171, 1303, 3909, 11727, 24757

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -110110011001011101

Octal: -663135

Duodecimal: -A8B39

Hexadecimal: -3665d

Square: 49645632969

Square Root: 472.0307193393244

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+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001. A259962

Numbers n such that A003144(n) = floor(α*n) + 1, where α = 1.839... is the positive real zero of x³-x²-x-1. A275158

Number of (n+2) X (3+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001. A259957

Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001. A259961