Properties of the Number -28801

Twenty-Eight Thousand Eight Hundred One

Basics

Value: -28802 → -28801 → -28800

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 83 × 347

Divisors: 1, 83, 347, 28801

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -111000010000001

Octal: -70201

Duodecimal: -14801

Hexadecimal: -7081

Square: 829497601

Square Root: 169.70857373745147

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) = 18·n² + 1. A157889

a(n) = 32·n² + 1. A158575

a(n) = ∑_{k=0..floor(n/2)} binomial(k+2,2) * binomial(k,2*(n-2·k)). A392252

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 910", based on the 5-celled von Neumann neighborhood. A290669

Fibonacci sequence beginning 13, 10. A206608

a(n) = 50·n² + 1. A157916

a(n) = 900·n + 1. A158407

a(n) = 72·n² + 1. A158740

a(n) is the number of binary (0,1) sequences of length n that have at least two ones in each window of eight consecutive symbols. A335247

a(n) = Fibonacci(n-1) + Fibonacci(floor(n/2)). A336030