Properties of the Number 28526

Twenty-Eight Thousand Five Hundred Twenty-Six

Basics

Value: 28525 → 28526 → 28527

Parity: even

Prime: No

Previous Prime: 28517

Next Prime: 28537

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 17 × 839

Divisors: 1, 2, 17, 34, 839, 1678, 14263, 28526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111101101110

Octal: 67556

Duodecimal: 14612

Hexadecimal: 6f6e

Square: 813732676

Square Root: 168.89641796083183

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

Maximal length of rook tour on an n X n board. A6071

a(n) = 839·n. A135639

The Wiener index of a chain of n triangles (i.e., joined like VVV..VV; here V is a triangle!). A143941

Expansion of g.f. 1 - 2·x*(-7 - 10·x + x²)/(x - 1)⁴. A152100

Numbers k such that the largest prime divisor of k⁴+1 is less than k. A309562

Powers of fifth root of 4 rounded down. A18123

Powers of fifth root of 4 rounded to nearest integer. A18124

a(n) = Jacobi P-Polynomial P_n(α=1, β=1, x=sqrt(2)) multiplied by 2^{n/2+floor(n/2}) and divided by n+1. A25176

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 633", based on the 5-celled von Neumann neighborhood. A273301

Character of extremal vertex operator algebra of rank 17/2. A28526