Properties of the Number -1091

Ninety-One

Basics

Value: -1092 → -1091 → -1090

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 1091

Divisors: 1, 1091

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001000011

Octal: -2103

Duodecimal: -76B

Hexadecimal: -443

Square: 1190281

Square Root: 33.03028912982749

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

E.g.f.: exp(x/(1+x)). A111884

Coefficients in asymptotic expansion of sequence A052129. A116603

Signed row sums of A066667. A66668

Triangle T(n,k) with the coefficient [x^k] of the characteristic polynomial of the following n X n triangular matrix: 4 on the main diagonal, -1 of the two adjacent subdiagonals, 0 otherwise. A124029

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. exp(x^k+1/(1+x)). A293133

Denominators of continued fraction for left factorial. A56920

A coefficient tree from the list partition transform relating A111884, A084358, A000262, A094587, A128229 and A131758. A131202

Expansion of (1-2x-5x²-7x³+x⁶)/((1-x)(1-x³)²). A141352

Triangle A124029 with the (0,0) entry replaced by 4. A123966

Expansion of (1-5x²-7x³-2x⁴+x⁶)/((1-x)(1-x³)²). A141365