Properties of the Number 39868

Thirty-Nine Thousand Eight Hundred Sixty-Eight

Basics

Value: 39867 → 39868 → 39869

Parity: even

Prime: No

Previous Prime: 39863

Next Prime: 39869

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 9967

Divisors: 1, 2, 4, 9967, 19934, 39868

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101110111100

Octal: 115674

Duodecimal: 1B0A4

Hexadecimal: 9bbc

Square: 1589457424

Square Root: 199.66972729985886

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

Pisot sequence L(6,7). A48585

Number of tilings of a 3 X n rectangle using integer-sided rectangular tiles of equal area. A220769

List of quadruples (r,s,t,u): the matrix M = [[9,24,16][3,10,8][1,4,4]] is raised to successive powers, then (r,s,t,u) are the square roots of M[3,1], M[3,3], M[1,1], M[1,3] respectively. A249581

Pisot sequence L(7,9). A48589

Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 4 which is symmetric after a rotation by 180 degrees. A123779

Number of (n+2)X6 binary arrays avoiding patterns 000 and 101 in rows and columns. A203087

Number of partitions satisfying cn(1,5) + cn(4,5) < cn(0,5) + cn(2,5) + cn(3,5). A39868

Numbers k such that prime(k) + prime(k+1) is a perfect power. A132746