Properties of the Number -6881

Eight Hundred Eighty-One

Basics

Value: -6882 → -6881 → -6880

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 983

Divisors: 1, 7, 983, 6881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101011100001

Octal: -15341

Duodecimal: -3B95

Hexadecimal: -1ae1

Square: 47348161

Square Root: 82.95179322956196

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

Coordination sequence for "pcu-i" 3D uniform tiling. A299277

Number of reversed integer partitions of 2n whose skew-alternating sum is 0. A357640

Sizes of successive clusters in Z⁴ lattice. A46895

Number of ON cells after n generations of two-dimensional automaton based on knight moves (see Comments for definition). A319018

Number of 3 X n binary matrices with no zero rows or columns, up to row and column permutation. A55609

Partial sums of A068058 + 1. A68059

Numbers of the form (4k+3)²-8 or (4k+5)²+4. A214405

Number of partitions that are "2-close" to being self-conjugate. A108961

Number of partitions of n such that 2*(least part) >= number of parts. A237800

a(n) = 4·n² + 4·n - 7. A166147