Properties of the Number 38861

Thirty-Eight Thousand Eight Hundred Sixty-One

Basics

Value: 38860 → 38861 → 38862

Parity: odd

Prime: Yes

Previous Prime: 38851

Next Prime: 38867

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 38861

Divisors: 1, 38861

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011111001101

Octal: 113715

Duodecimal: 1A5A5

Hexadecimal: 97cd

Square: 1510177321

Square Root: 197.1319355152787

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 non-isomorphic set-systems of weight n with no singletons. A306005

G.f.: exp( ∑_n>=1 5·L(n)*xⁿ/n ), where L(n) = Fibonacci(n-1)ⁿ + Fibonacci(n+1)ⁿ. A207834

Indices where the cumulative sum of cos(2k+1)^2k+1 reaches a record high value. A389559

Numbers k such that the continued fraction for sqrt(k) has period 87. A20426

Primes with 14 as smallest positive primitive root. A61327

Records in A111229. A111270

G.f. satisfies: A(x) = -1 + x + A(x)² + 1/A(x)². A228714

Numbers ending with '6' that are the difference of two positive cubes. A38861