Properties of the Number -2207

Two Hundred Seven

Basics

Value: -2208 → -2207 → -2206

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2207

Divisors: 1, 2207

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010011111

Octal: -4237

Duodecimal: -133B

Hexadecimal: -89f

Square: 4870849

Square Root: 46.97871858618538

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

Expansion of (1-2·x)/(1+x-x²). A75193

a(n) = 1 - 4·n - 4·n². A184882

a(n) = ∑_k=1..n (-2)^{n - floor(n/k}). A345109

Sum of Lucas numbers and inverted Lucas numbers: a(n) = A000032(n)*A075193(n). A75270

Expansion of (1 - x)*(1 + x)²*(1 + x²)*(1 - x² + 2·x³ + x⁴) / ((1 - x² - x⁴)*(1 + x² + 2·x⁴ - x⁶ + x⁸)). A107363

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood. A270220

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 261", based on the 5-celled von Neumann neighborhood. A271064

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 337", based on the 5-celled von Neumann neighborhood. A271288

Expansion of log(1+sin(tanh(x))). A9330

arctanh(sin(tanh(x)))=x-1/3!*x³+1/5!*x⁵+55/7!*x⁷-2207/9!*x⁹... A12048