Properties of the Number 28560

Twenty-Eight Thousand Five Hundred Sixty

Basics

Value: 28559 → 28560 → 28561

Parity: even

Prime: No

Previous Prime: 28559

Next Prime: 28571

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 7 × 17

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110111110010000

Octal: 67620

Duodecimal: 14640

Hexadecimal: 6f90

Square: 815673600

Square Root: 168.99704139422087

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

Jordan function J₄(n). A59377

a(n) = n⁴ - 1. A123865

Numbers k such that (k+1)*(2·k+1) is a perfect square. A78522

Number of partitions of at most n into at most 5 parts. A2622

Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=12. A135197

a(n) = n*(n + 1)*(n + 2)*(n + 3)/2. A33486

Values of y such that x² + y² = 13ⁿ with·and y coprime and 0 < x < y. A188949

Number of labeled n-node 4-valent graphs containing two adjacent double edges. A58832

a(n) is the smallest k such that k + 1 and n·k + 1 both are perfect squares, or 0 if no such number exists. A84702

Numbers n such that the multiplicative group modulo n is the direct product of 6 cyclic groups. A272596