Properties of the Number 47665

Forty-Seven Thousand Six Hundred Sixty-Five

Basics

Value: 47664 → 47665 → 47666

Parity: odd

Prime: No

Previous Prime: 47659

Next Prime: 47681

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 9533

Divisors: 1, 5, 9533, 47665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101000110001

Octal: 135061

Duodecimal: 23701

Hexadecimal: ba31

Square: 2271952225

Square Root: 218.3231549790356

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

Numbers k such that 7·4^k + 1 is prime. A2255

The number of distinct positions on an infinite chessboard reachable by the (2,3)-leaper (or zebra) in at most n moves. A297740

Triangle read by rows: T(n,k) = n! * coefficient of m^k in the polynomial counting labeled digraphs with m nodes and n arcs and without directed paths of length >= 2, with 0 <= k <= 2·n. A387663

Expansion of (1/sqrt(1-6·x+x²)-1/(1-x))/2. A47665