Properties of the Number 47946

Forty-Seven Thousand Nine Hundred Forty-Six

Basics

Value: 47945 → 47946 → 47947

Parity: even

Prime: No

Previous Prime: 47939

Next Prime: 47947

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 61 × 131

Divisors: 1, 2, 3, 6, 61, 122, 131, 183, 262, 366

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101101001010

Octal: 135512

Duodecimal: 238B6

Hexadecimal: bb4a

Square: 2298818916

Square Root: 218.9657507465494

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

E.g.f.: ∑_n>=0 (W(x)ⁿ - 1)ⁿ / n!, where W(x) = exp(x·W(x)) = LambertW(-x)/(-x). A326266

a(n) = floor(n(n-1)(n-2)(n-3)/18). A11928

a(n) = ∑_i=0..n T(i,n-i), array T as in A049723. A49724

a(n) = 5·F(n)² + 3*(-1)ⁿ where F(n) are the Fibonacci numbers A000045. A47946