Properties of the Number 47320

Forty-Seven Thousand Three Hundred Twenty

Basics

Value: 47319 → 47320 → 47321

Parity: even

Prime: No

Previous Prime: 47317

Next Prime: 47339

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 7 × 13 ²

Divisors: 1, 2, 4, 5, 7, 8, 10, 13, 14, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011100011011000

Octal: 134330

Duodecimal: 23474

Hexadecimal: b8d8

Square: 2239182400

Square Root: 217.53160689885965

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

Coordination sequence for (2,3,9) tiling of hyperbolic plane. A265059

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically. A207661

Robbins triangle read by rows: T(n,k) = number of alternating sign n X n matrices with a 1 at top of column k (n >= 1, 1<=k<=n). A48601

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 0 and 1 1 1 vertically. A207895

Expansion of (x⁴+x³-x²+x)/(x³+x²-3·x+1). A265278

Numbers k which have a factorization k = f1·f2*...*fr where the digits of {k, f1, f2, ..., fr} together give 0,1,...,9 exactly once. A370970

Number of dominating subsets with k vertices in all the graphs G(n) (n>=1) obtained by taking n copies of the path P₃ and identifying one of their endpoints (a star with n branches of length 2). A213667

Sum of the squares of the a(n)-th and the (a(n)+1)st triangular numbers (A000217) is a perfect square. A65113

Expansion of (1+4·x+x²)/((1-x²)*(1-2·x-x²)); a Pellian-related sequence. A114696

Expansion of 2·x² / (x³ + x² - 3x + 1). A293004