Properties of the Number 22865

Twenty-Two Thousand Eight Hundred Sixty-Five

Basics

Value: 22864 → 22865 → 22866

Parity: odd

Prime: No

Previous Prime: 22861

Next Prime: 22871

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 17 × 269

Divisors: 1, 5, 17, 85, 269, 1345, 4573, 22865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100101010001

Octal: 54521

Duodecimal: 11295

Hexadecimal: 5951

Square: 522808225

Square Root: 151.21177202850313

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

Numbers whose square is a palindrome. A2778

T(n,k)=Number of -k..k circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)). A202006

Numbers k such that k² is a palindromic square of sporadic type. A59744

Nonpalindromic and "non-core" numbers that when squared give palindrome with odd number of digits. A16106

T(n,k)=Number of nXk array permutations with each element making zero or one knight moves. A189150

Triangle read by rows: T(n,k) is the number of weighted lattice paths B(n) having k uhd strings. A247290

Number of weighted lattice paths B(n) having no uhd strings. A247291

Numbers k such that k² is a palindrome with an odd number of digits. A28816

Number of 6-cycles in the n-triangular honeycomb obtuse knight graph. A290392

a(n) = [ a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ], for n >= 3. A22859