Properties of the Number -2911

Nine Hundred Eleven

Basics

Value: -2912 → -2911 → -2910

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 41 × 71

Divisors: 1, 41, 71, 2911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101011111

Octal: -5537

Duodecimal: -1827

Hexadecimal: -b5f

Square: 8473921

Square Root: 53.95368384086484

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(n) = -A001353(n). A106707

a(n) = ∑_{k=0..floor(n/6)} (-1)^k*binomial(n,6·k). A307040

Inverse Euler transform of Thue-Morse sequence A001285. A316149

a(1) = 1; a(n+1) = a(n) +- (sum of digits of a(1) up to a(n)), with "+" when a(n) is odd, or "-" if even. A332058

a(n) = -14·a(n-1) - a(n-2), with a(1) = a(2) = 1. A122572

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 443", based on the 5-celled von Neumann neighborhood. A272228

Center antidiagonal four in a tri-antidiagonal n-th Matrix generated triangular sequence: first element as 4==m[1,1,1]. A124028

Expansion of x *(1+x) *(x²+1) *(15·x⁴+1) / ( (x⁴-2·x³+2·x²+2·x+1) *(x⁴+2·x³+2·x²-2·x+1) ). A140806

Expansion of e.g.f. log(1 + exp(x)*sinh(sqrt(2)*x)/sqrt(2)). A323722

a(n) = 4·a(n-1) - a(n-2) with a(0) = 0, a(1) = 1. A1353