Properties of the Number -28504

Twenty-Eight Thousand Five Hundred Four

Basics

Value: -28505 → -28504 → -28503

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 7 × 509

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 509, 1018

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110111101011000

Octal: -67530

Duodecimal: -145B4

Hexadecimal: -6f58

Square: 812478016

Square Root: 168.83127672324224

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

Number of intersections inside an equilateral triangular figure formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. If three or more lines meet at an interior point this intersection is counted only once. A92866

Structured hexagonal diamond numbers (vertex structure 5). A100178

Sum of ceiling(n/per(w)) over all binary words of length n. A331699

The number of digits of (2ⁿ)!. A244061

Triangle of coefficients of powers of e² in numerators of ∑_k>=1 {1 / (1 + k²*π²)ⁿ}. A85470

Number of non-intersecting unit cubes regularly packed into the tetrahedron of edge length n. A219965

E.g.f.: exp(∑_k>=1 A014197(k)*x^k). A347524