Properties of the Number 28555

Twenty-Eight Thousand Five Hundred Fifty-Five

Basics

Value: 28554 → 28555 → 28556

Parity: odd

Prime: No

Previous Prime: 28549

Next Prime: 28559

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 5711

Divisors: 1, 5, 5711, 28555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110111110001011

Octal: 67613

Duodecimal: 14637

Hexadecimal: 6f8b

Square: 815388025

Square Root: 168.98224758831918

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

Expansion of 1/((1-x)*(1-2·x)*(1-x-2·x³)). A3230

Number of (w,x,y) with all terms in {0,...,n} and w ≠ max(|w-x|, |x-y|). A213501

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 425", based on the 5-celled von Neumann neighborhood. A272091

Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5. A375981

Stirling numbers of second kind S(n,3). A392

Numerator of frequency of integers with smallest divisor prime(n). A38110

Denominator of density of integers with smallest prime factor prime(n). A38111

Numbers k such that k*(k+4) is a palindrome. A28555

Number of ways to reciprocally link elements of an nX4 array either to themselves or to exactly two horizontal, vertical and antidiagonal neighbors, without 3-loops. A220598