Properties of the Number 38805

Thirty-Eight Thousand Eight Hundred Five

Basics

Value: 38804 → 38805 → 38806

Parity: odd

Prime: No

Previous Prime: 38803

Next Prime: 38821

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 13 × 199

Divisors: 1, 3, 5, 13, 15, 39, 65, 195, 199, 597

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011110010101

Octal: 113625

Duodecimal: 1A559

Hexadecimal: 9795

Square: 1505828025

Square Root: 196.98984745412642

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

-3-Knödel numbers. A225507

Expansion of g.f. A(x) satisfying A(x) = A( x²*(1+x)⁴ ) / (x*(1+x)³). A369547

Numbers k such that sopfr(k + sopfr(k)) = sopfr(k) + sopfr(sopfr(k)), where sopfr = A001414. A376851

Let f(n) = exp(π*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10³. A127028

The number of P-positions in the game of Nim with up to 5 piles, allowing for piles of zero, such that the number of objects in the largest pile is n. A241731

Quintisection A061037(5·n+2). A165248

Squarefree numbers of the form (prime(k)+1)*(prime(k+1)+1)/4. A79095

a(n) = 16n⁴ + 64n³ + 104n² + 80n + 21. A176711

a(n) = prime(n)² - 4·prime(n). A245034

Solutions k of the equation cototient(k) = cototient(k-1) + cototient(k-2) where cototient(k) is A051953. A332972