Properties of the Number 47219

Forty-Seven Thousand Two Hundred Nineteen

Basics

Value: 47218 → 47219 → 47220

Parity: odd

Prime: No

Previous Prime: 47207

Next Prime: 47221

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 23 × 2053

Divisors: 1, 23, 2053, 47219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100001110011

Octal: 134163

Duodecimal: 233AB

Hexadecimal: b873

Square: 2229633961

Square Root: 217.29933271871775

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

Least positive integer k such that both k and k·n belong to the set {m>0: 2·prime(prime(m))+1 = prime(p) for some prime p}. A261362

Triangle read by rows: number of 0-1-2 trees (i.e., ordered trees with vertices of outdegrees 0, 1, or 2) with n edges and exactly k vertices that have 2 children, both being leaves (n >= 0, 0 <= k <= floor((n+2)/4)). A126191

Numbers that are congruent to {1, 3} mod 5. A47219