Properties of the Number 28481

Twenty-Eight Thousand Four Hundred Eighty-One

Basics

Value: 28480 → 28481 → 28482

Parity: odd

Prime: No

Previous Prime: 28477

Next Prime: 28493

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 19 × 1499

Divisors: 1, 19, 1499, 28481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111101000001

Octal: 67501

Duodecimal: 14595

Hexadecimal: 6f41

Square: 811167361

Square Root: 168.76314763596937

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

Dana Scott's sequence: a(n) = (a(n-2) + a(n-1) * a(n-3)) / a(n-4), a(0) = a(1) = a(2) = a(3) = 1. A48736

Positive integers of the form (10·m²+1)/11. A179338

Odd numbers seen in decimal expansion of π (disregarding the decimal period) contiguous, smallest and distinct. A50817

Coefficient of x² in minimal polynomial of the continued fraction [1ⁿ,1/3,1,1,1,...], where 1ⁿ means n ones. A266701

Sums of the next n consecutive nonsquare integers. A275740

Number of monomial terms in expansion of n-th coefficient of replicable function as a polynomial in [c1, c2, c3, c4, c5, c7, c8, c9, c11, c17, c19, c23]. A112331

Smallest number k >= A000043(n) such that k·A000668(n)*(k·A000668(n)+1)-1 is prime. A249509

a(n) = (11·n + 9)⁴. A17500

Triangle read by rows in which row n lists the possible eventual periods of cellular automaton rule 110 in a cyclic universe of width n. A332717

Number of perfect matchings in graph C₁₀ X P_n. A28481