Properties of the Number 63921

Sixty-Three Thousand Nine Hundred Twenty-One

Basics

Value: 63920 → 63921 → 63922

Parity: odd

Prime: No

Previous Prime: 63913

Next Prime: 63929

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 × 13 × 149

Divisors: 1, 3, 11, 13, 33, 39, 143, 149, 429, 447

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100110110001

Octal: 174661

Duodecimal: 30BA9

Hexadecimal: f9b1

Square: 4085894241

Square Root: 252.82602714119446

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

Number of subsets {x(1),x(2),...,x(k)} of {1,2,...,n} such that all differences |x(i)-x(j)| are distinct. A143823

a(n) = (n - 1)*(n² + n - 1). A33445

Composite squarefree integers for which the sum of the squares of their factors is a square. A379780

Quotients arising when A046755(n) is divided by the cube of the number of its divisors. A63921