Properties of the Number 92205

Ninety-Two Thousand Two Hundred Five

Basics

Value: 92204 → 92205 → 92206

Parity: odd

Prime: No

Previous Prime: 92203

Next Prime: 92219

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 683

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 683, 2049

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110100000101101

Octal: 264055

Duodecimal: 45439

Hexadecimal: 1682d

Square: 8501762025

Square Root: 303.6527622136838

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 n-bead necklaces (turning over is allowed) where complements are equivalent. A11

a(n) = 3·a(n-1) + 2·a(n-2) for n>1, a(0)=2, a(1)=3. A206776

Number of self-dual 2-colored necklaces with 2n beads. A7147

a(n) = ∑_k=0..n 4^k * binomial(n,k) * binomial(n+2,k). A388205

Bisection of A000011. A92668

Number of units in the imaginary quadratic field Q(sqrt(-n)). A92205

a(n) = 81·n² - 72·n + 17. A154277

Array read by antidiagonals: ((z+sqrt(x))/2)^k + ((z-sqrt(x))/2)^k for columns k >= 0 and rows n >= 0, where x = 4·n+1 and y = floor(sqrt(x)) and z = y-1+(y mod 2). A309852