Properties of the Number 40191

Forty Thousand One Hundred Ninety-One

Basics

Value: 40190 → 40191 → 40192

Parity: odd

Prime: No

Previous Prime: 40189

Next Prime: 40193

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 13397

Divisors: 1, 3, 13397, 40191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110011111111

Octal: 116377

Duodecimal: 1B313

Hexadecimal: 9cff

Square: 1615316481

Square Root: 200.47693134123935

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

Natural growth of an aliquot sequence driven by a perfect number 2^p-1*((2^p) - 1). A146556

Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 133", based on the 5-celled von Neumann neighborhood. A286021

Expansion of (g/(1 - x·g²))², where g = 1+x·g⁴ is the g.f. of A002293. A391199

a(1) = 1; a(n+1) = ∑_d∣n τ(d)*a(d), where τ = number of divisors (A000005). A307793

Numbers n such that 4·10ⁿ + R_n + 6 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A102982

Base-9 palindromes that start with 6. A43033

Continued fraction for sqrt(206). A40191