Properties of the Number 68685

Sixty-Eight Thousand Six Hundred Eighty-Five

Basics

Value: 68684 → 68685 → 68686

Parity: odd

Prime: No

Previous Prime: 68683

Next Prime: 68687

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 19 × 241

Divisors: 1, 3, 5, 15, 19, 57, 95, 241, 285, 723

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110001001101

Octal: 206115

Duodecimal: 338B9

Hexadecimal: 10c4d

Square: 4717629225

Square Root: 262.0782325947731

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

Array read by antidiagonals: T(n,k) = number of nonequivalent dissections of a polygon into n k-gons by nonintersecting diagonals up to rotation (k >= 3). A295224

Number of colored quivers in the 4-mutation class of a quiver of Dynkin type A_n. A221184

Array read by antidiagonals: T(n,k) is the number of noncrossing k-gonal cacti with n polygons up to rotation and reflection. A361239

Number of nonequivalent noncrossing triangular cacti with n triangles up to rotation and reflection. A361240

Numbers k such that prime(k+1)^prime(k+3) == prime(k) mod prime(k+2). A335571

Primes which are a sandwich of numbers using at most one digit between two 1's. A68685

Number of defective 3-colorings of a 5 X n 0..2 array connected horizontally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order. A229698