Properties of the Number -28863

Twenty-Eight Thousand Eight Hundred Sixty-Three

Basics

Value: -28864 → -28863 → -28862

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 1069

Divisors: 1, 3, 9, 27, 1069, 3207, 9621, 28863

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111000010111111

Octal: -70277

Duodecimal: -14853

Hexadecimal: -70bf

Square: 833072769

Square Root: 169.89114161721324

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

Consider n equally spaced points along a line and join every pair of points by a semicircle above the line; a(n) is the number of intersection points. A290447

Number of positive special sums of integer partitions of n. A301854

Number of distinct terms in row n of Stern's diatomic array, A049456. A293160

Duplicate of A293160. A294443

Number of ways to choose a rooted partition of each part in a strict rooted partition of n. A301751

Expansion of -(4·x³+8·x²+4·x+1)/(2·x⁴+4·x³+2·x²-x-1). A270307

a(n) = ∑_k=0..n σ(k² + 1), where σ(k) is the sum of divisors of k (A000203). A333172