Properties of the Number 28550

Twenty-Eight Thousand Five Hundred Fifty

Basics

Value: 28549 → 28550 → 28551

Parity: even

Prime: No

Previous Prime: 28549

Next Prime: 28559

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 ² × 571

Divisors: 1, 2, 5, 10, 25, 50, 571, 1142, 2855, 5710

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110000110

Octal: 67606

Duodecimal: 14632

Hexadecimal: 6f86

Square: 815102500

Square Root: 168.967452487158

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 bracket function. A1659

Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of involutions on an n-set with k involutions. A362648

Expansion of the series 1/e(-q), where the series e(q) is Morier-Genoud and Ovsienko's q-analog of the real number e = exp(1). A392021

Number n such that a2 - n³ is a triangular number (A000217), where a2 is the least square above n³. A233400

Numbers whose binary expansion consists of alternating runs of 1's and 0's where each run of 0's is exactly one shorter than the preceding run of 1's, and the expansion ends with a 0-run. A387270

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 606", based on the 5-celled von Neumann neighborhood. A273206

exp(arcsinh(x)+arctan(x))=1+2·x+4/2!*x²+5/3!*x³-8/4!*x⁴-55/5!*x⁵... A13103

cosh(arcsinh(x)+arctan(x))=1+4/2!*x²-8/4!*x⁴+70/6!*x⁶-920/8!*x⁸... A13112

Character of extremal vertex operator algebra of rank 45/2. A28550