Properties of the Number 87841

Eighty-Seven Thousand Eight Hundred Forty-One

Basics

Value: 87840 → 87841 → 87842

Parity: odd

Prime: No

Previous Prime: 87833

Next Prime: 87853

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 13 × 29 × 233

Divisors: 1, 13, 29, 233, 377, 3029, 6757, 87841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011100100001

Octal: 253441

Duodecimal: 42A01

Hexadecimal: 15721

Square: 7716041281

Square Root: 296.37982387470305

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

Golden rectangle numbers: F(n) * F(n+1), where F(n) = A000045(n) (Fibonacci numbers). A1654

a(n) = a(n-1) + a(n-3) + a(n-4), a(0) = a(1) = a(2) = 1, a(3) = 2. A6498

a(n) = (Lucas(4·n+3) + 1)/5, or Fibonacci(2·n+1)*Fibonacci(2·n+2), or A081015(n)/5. A81016

Antidiagonal sums of triangle A035317. A80239

a(n) = a(n-1) + a(n-3) + a(n-4), starting with a(0..3) = 1, 2, 2, 3. A70550

a(n) = ∑_{i = 0..floor(n/2)} (-1)^{i + floor(n/2}) F(2·i + e), where F = A000045 (Fibonacci numbers) and e = (1-(-1)ⁿ)/2. A74677

Number of 4-linear trees on n nodes. A338708

Denominators a(n) of Pythagorean approximations b(n)/a(n) to 1/2. A195547

Ordered sequence of Fibonomial coefficients. A144712

A product of consecutive doubled Fibonacci numbers. A166536