Properties of the Number -881

Eight Hundred Eighty-One

Basics

Value: -882 → -881 → -880

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 881

Divisors: 1, 881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101110001

Octal: -1561

Duodecimal: -615

Hexadecimal: -371

Square: 776161

Square Root: 29.68164415931166

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

Nearest integer to n²*sin(n). A274087

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 5. A60024

Reflected (see A074058) pentanacci numbers A074048. A74062

G.f.: A(x) = ∑_n=-oo..+oo (x - xⁿ)ⁿ. A290003

Expansion of (1-x-2·x²)/(1-x²+x³). A109248

Triangle T(n, k, q) = (1-qⁿ)*( binomial(n, k) - 1 ) + 1, with q = 2, read by rows. A174718

Triangle T(n, k, q) = (1-qⁿ)*(1/k)*binomial(n-1, k-1)*binomial(n, k-1) - (1-qⁿ) + 1, for q = 2, read by rows. A174731

a(n+1) = a(n) - n (if n is odd), a(n+1) = a(n) * n (if n is even). A47906

Alternating sum of centered heptagonal pyramidal numbers. A270694

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 483", based on the 5-celled von Neumann neighborhood. A272346