Properties of the Number 28769

Twenty-Eight Thousand Seven Hundred Sixty-Nine

Basics

Value: 28768 → 28769 → 28770

Parity: odd

Prime: No

Previous Prime: 28759

Next Prime: 28771

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 13 × 2213

Divisors: 1, 13, 2213, 28769

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000001100001

Octal: 70141

Duodecimal: 14795

Hexadecimal: 7061

Square: 827655361

Square Root: 169.61426826773743

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) = 31·a(n-1)-a(n-2). A111216

a(n) = n³ - n² - 2·n + 1. A123972

Numbers k such that A224787(k) - k is a square. A385238

Sum of all matrix elements of n X n matrix M[i,j] = (-1)^i+j*Fibonacci[i+j-1]. A119997

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 451", based on the 5-celled von Neumann neighborhood. A272258

Numbers whose base-13 representation has exactly 5 runs. A43660

Nonsquares mod 56. A28769