Properties of the Number 66443

Sixty-Six Thousand Four Hundred Forty-Three

Basics

Value: 66442 → 66443 → 66444

Parity: odd

Prime: No

Previous Prime: 66431

Next Prime: 66449

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 13 × 19 × 269

Divisors: 1, 13, 19, 247, 269, 3497, 5111, 66443

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001110001011

Octal: 201613

Duodecimal: 3254B

Hexadecimal: 1038b

Square: 4414672249

Square Root: 257.7653972122713

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 length n+4 0..k arrays with some disjoint pairs in every consecutive five terms having the same sum. A247927

Values·for records of the minima of the positive distance d between the ninth power of a positive integer·and the square of an integer y such that d = x⁹ - y² (x <> k² and y <> k⁹). A179791

Number of length n+4 0..2 arrays with some disjoint pairs in every consecutive five terms having the same sum. A247921

Number of length 7+4 0..n arrays with some disjoint pairs in every consecutive five terms having the same sum. A247934

Numbers whose base-3 representation has exactly 11 runs. A43591

Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10. A43816

a(n) = n * (10·n² - 6n + 1) = n·A087348(n). A104099

Number of distinct paths of length 2n+1 along edges of a unit cube between two fixed adjacent vertices. A66443