Properties of the Number 47666

Forty-Seven Thousand Six Hundred Sixty-Six

Basics

Value: 47665 → 47666 → 47667

Parity: even

Prime: No

Previous Prime: 47659

Next Prime: 47681

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 23833

Divisors: 1, 2, 23833, 47666

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101000110010

Octal: 135062

Duodecimal: 23702

Hexadecimal: ba32

Square: 2272047556

Square Root: 218.32544515012444

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 ways to tile a 5 X 2n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point. A68924

Transform of 1 by the T_1,1 transformation (see link). A159328

The Padovan sequence A000931 doubled. A291289

Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal. A232582

Square array a(n,k) read by antidiagonals: a(n,1)=n, a(1,k)=k, a(n,k) = a(n-1,k-1) + a(n-1,k) + a(n,k-1). A47666