Properties of the Number 22810

Twenty-Two Thousand Eight Hundred Ten

Basics

Value: 22809 → 22810 → 22811

Parity: even

Prime: No

Previous Prime: 22807

Next Prime: 22811

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 2281

Divisors: 1, 2, 5, 10, 2281, 4562, 11405, 22810

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100100011010

Octal: 54432

Duodecimal: 1124A

Hexadecimal: 591a

Square: 520296100

Square Root: 151.02979838429235

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

p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = 1 - 2 S - S². A290616

Aliquot sequence starting at 660. A14362

a(n) = 1 + ∑_k=1..n-1 binomial(n-1,k) * a(k) * a(n-k-1). A332776

Numbers n such that the decimal equivalent of the binary reflected Gray code representation of n is a palindromic prime. A281382

Number of 6-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions. A187380

Number of length n+2 0..7 arrays with every three consecutive terms having the sum of some two elements equal to twice the third. A248432

Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 4 ones in any 3 X 3 X 3 subtriangle. A153930

T(n,k)=Number of length n+2 0..k arrays with every three consecutive terms having the sum of some two elements equal to twice the third. A248433

T(n,k)=Number of n-step S, NW and NE-moving king's tours on a kXk board summed over all starting positions. A187377

a(n) = L(n+2) + c(n) where L(k) is the k-th Lucas number and c(n) is the n-th number that is 1 or 3 or is not a Lucas number. A22810