Properties of the Number 47821

Forty-Seven Thousand Eight Hundred Twenty-One

Basics

Value: 47820 → 47821 → 47822

Parity: odd

Prime: No

Previous Prime: 47819

Next Prime: 47837

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 17 × 29 × 97

Divisors: 1, 17, 29, 97, 493, 1649, 2813, 47821

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101011001101

Octal: 135315

Duodecimal: 23811

Hexadecimal: bacd

Square: 2286848041

Square Root: 218.68013169924697

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 unrooted achiral trees with n nodes. A3244

Becomes prime after exactly 2 iterations of f(x) = sum of prime factors of x. A47821