Properties of the Number 28180

Twenty-Eight Thousand One Hundred Eighty

Basics

Value: 28179 → 28180 → 28181

Parity: even

Prime: No

Previous Prime: 28163

Next Prime: 28181

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 1409

Divisors: 1, 2, 4, 5, 10, 20, 1409, 2818, 5636, 7045

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111000010100

Octal: 67024

Duodecimal: 14384

Hexadecimal: 6e14

Square: 794112400

Square Root: 167.86899654194636

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

L.g.f.: ∑_n>=1 (x - x^2·n-1)^2·n-1 / (2·n-1). A293597

a(n) is the number of primes between (prime(n))³ and (prime(n+1))³. A365767

Number of tilings of an n X 9 rectangle using integer-sided rectangular tiles of area n. A220134

Expansion of 1/((1-5x)(1-7x)(1-8x)(1-9x)). A28180