Properties of the Number 47243

Forty-Seven Thousand Two Hundred Forty-Three

Basics

Value: 47242 → 47243 → 47244

Parity: odd

Prime: No

Previous Prime: 47237

Next Prime: 47251

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 17 × 397

Divisors: 1, 7, 17, 119, 397, 2779, 6749, 47243

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1011100010001011

Octal: 134213

Duodecimal: 2340B

Hexadecimal: b88b

Square: 2231901049

Square Root: 217.35454906672646

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

a(0) = a(1) = a(2) = 1; a(n) = ∑_k=0..n-3 Stirling2(n-3,k) * a(k). A336020

a(n) = (1/4) * ∑_{k=0..floor(n/2)} (k+2) * binomial(2·k+2,2·n-4·k+1). A391830

Numbers that are congruent to {2, 3} mod 6. A47243