Properties of the Number 28884

Twenty-Eight Thousand Eight Hundred Eighty-Four

Basics

Value: 28883 → 28884 → 28885

Parity: even

Prime: No

Previous Prime: 28879

Next Prime: 28901

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 29 × 83

Divisors: 1, 2, 3, 4, 6, 12, 29, 58, 83, 87

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000011010100

Octal: 70324

Duodecimal: 14870

Hexadecimal: 70d4

Square: 834285456

Square Root: 169.95293466133498

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 cyclic change-ringing sequences of length n for 9 bells. A324952

a(n) = s(2·n) where s(0) = 0, s(1) = s(2) = 1, s(n) = abs(∑_k=2..n-1 (-1)^k * s(n-k) * s(k)). A72851

Square array A(n,k), n>=1, k>=1, read by antidiagonals: A(n,k) is the number of n-colorings of the complete bipartite graph K_k,k. A212085

G.f.: ∑_k>=1 (k³ * x^k² / ∏_j=1..k (1 - x^j)). A333151

Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals. A185788

Principal diagonal of the convolution array A213838. A213839

McKay-Thompson series of class 35A for Monster. A58640

E.g.f. A(x) satisfies A'(x) = exp( A(x)*A'(x)² ). A392206

a(n) = ∑_{i=1..floor((n+1)/4)} a(2·i-1) * a(n-2·i+1), with a(1)=a(2)=1 and a(3)=4. A24727

Molien series for invariants of finite Coxeter group D₁₀ (bisected). A266773