Properties of the Number 28272

Twenty-Eight Thousand Two Hundred Seventy-Two

Basics

Value: 28271 → 28272 → 28273

Parity: even

Prime: No

Previous Prime: 28229

Next Prime: 28277

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 19 × 31

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 19, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111001110000

Octal: 67160

Duodecimal: 14440

Hexadecimal: 6e70

Square: 799305984

Square Root: 168.14279645586961

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

Number of integer partitions of n such that the maximum is greater than or equal to twice the median. A361859

Number of multigraphs with 4 nodes and n edges. A3082

Binomial transform of [1, 7, 17, 17, 6, 0, 0, 0, ...]. A132117

Triangle read by rows: T(n,k) is the number of linear chord diagrams on 2n vertices with one marked chord such that exactly k of the remaining n-1 chords contain the marked chord. A336600

a(n) = 49·n² + 2·n. A157365

a(1) = 16, a(n) = σ(a(n-1)). A257349

Number of circular binary words of length n having the maximum possible number of distinct blocks of length floor(log₂ n) and floor(log₂ n)+1. A317586

Let S(n)=σ(|n|)-3·n; sequence gives numbers n such that S(S(S(S(n))))=n. May be called {3,1}-Sociable number of orders 1 or 2 or 4. A114528

a(n) = r₄(n² + 1), where r₄(k) is the number of ways of writing k as a sum of 4 squares (A000118). A333173

Least term in period of continued fraction for sqrt(n) is 7. A31431