Properties of the Number 42664

Forty-Two Thousand Six Hundred Sixty-Four

Basics

Value: 42663 → 42664 → 42665

Parity: even

Prime: No

Previous Prime: 42649

Next Prime: 42667

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5333

Divisors: 1, 2, 4, 8, 5333, 10666, 21332, 42664

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011010101000

Octal: 123250

Duodecimal: 20834

Hexadecimal: a6a8

Square: 1820216896

Square Root: 206.55265672462312

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

T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. A283543

8th-power analog of Keith numbers. A281919

T(n,k) = Number of n X k 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,1,3,2,0 for x=0,1,2,3,4. A197199

Number of dyslexic rooted compound windmills with n nodes. A32289

Number of nX5 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,3,2,0 for x=0,1,2,3,4. A197196

Number of nX6 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,3,2,0 for x=0,1,2,3,4. A197197

Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. A283542

Number of 3 X n 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. A283544

Numerators of continued fraction convergents to sqrt(862). A42664