Properties of the Number 85626

Eighty-Five Thousand Six Hundred Twenty-Six

Basics

Value: 85625 → 85626 → 85627

Parity: even

Prime: No

Previous Prime: 85621

Next Prime: 85627

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 67 × 71

Divisors: 1, 2, 3, 6, 9, 18, 67, 71, 134, 142

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111001111010

Octal: 247172

Duodecimal: 41676

Hexadecimal: 14e7a

Square: 7331811876

Square Root: 292.61920647831715

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

Narayana's cows sequence: a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) + a(n-3). A930

a(n) = a(n-1) + a(n-3) for n >= 3, with a(0) = 1, a(1) = a(2) = 0. This recurrence can also be used to define a(n) for n < 0. A78012

Expansion of (1 - x)/(1 + x - 2·x² + x³). A78039

a(n) = n-1, if n <= 2, otherwise A107458(n-1) + A107458(n-2). A135851

Number of ways to tile a 2 X n room with 1 X 2 Tatami mats. At most 3 Tatami mats may meet at a point. A68921

Expansion of (1-x)/(1-4·x+3·x²-x³). A124820

a(0) = 0, a(1) = 1, a(2) = 2; for n > 2, a(n) = a(n-1) + 2·a(n-2) + a(n-3). A141015

Divide even numbers into groups with prime(n) elements and add together. A34959

Pisot sequence P(4,6). A48625

a(n) = ∑_{k=0..floor(n/3)} C(n-2k,k-1). A99560