Properties of the Number 86894

Eighty-Six Thousand Eight Hundred Ninety-Four

Basics

Value: 86893 → 86894 → 86895

Parity: even

Prime: No

Previous Prime: 86869

Next Prime: 86923

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 2 × 23 × 1889

Divisors: 1, 2, 23, 46, 1889, 3778, 43447, 86894

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001101101110

Octal: 251556

Duodecimal: 42352

Hexadecimal: 1536e

Square: 7550567236

Square Root: 294.77788248103013

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(1)..a(4) = 0,0,0,1; thereafter a(n) = a(n-2)+a(n-3)+2*(d(n-3)+d(n-4)) where d(n) = A238824(n). A238825

Consider the 2^n-1 monic polynomials f(x) with coefficients 0 or 1, degree n and f(0)=1. Sequence gives triangle read by rows, in which T(n,k) (n>=1) is the number of such polynomials of thickness k (2 <= k <= n+1). A169940

a(n) = (A000522(2·n) + 1)/2. A86894