Properties of the Number 87842

Eighty-Seven Thousand Eight Hundred Forty-Two

Basics

Value: 87841 → 87842 → 87843

Parity: even

Prime: No

Previous Prime: 87833

Next Prime: 87853

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 167 × 263

Divisors: 1, 2, 167, 263, 334, 526, 43921, 87842

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011100100010

Octal: 253442

Duodecimal: 42A02

Hexadecimal: 15722

Square: 7716216964

Square Root: 296.3815108943201

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

a(n) = a(n-1) + a(n-3) + a(n-4) for n > 3, a(0) = -1, a(1) = 1, a(2) = 2, a(3) = 1. A111569

a(n) = F(n)*F(n+1) - (-1)ⁿ, where F = A000045. A260259

Expansion of x*(1-2·x-x²)/( (1-x)*(1+x)*(1-3·x+x²)). A107387

a(n) = n² + (n + 1)³ + (n + 2)⁴. A61222

Numbers n such that n² - 1 is the product of four distinct Fibonacci numbers greater than 1. A242074

a(n) = a(a(a(n - a(n-1)))) + a(n - a(n-2)). A87842

Number of nX4 binary arrays without the pattern 1 1 0 diagonally, vertically or horizontally. A188518