Properties of the Number 47808

Forty-Seven Thousand Eight Hundred Eight

Basics

Value: 47807 → 47808 → 47809

Parity: even

Prime: No

Previous Prime: 47807

Next Prime: 47809

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁶ × 3 ² × 83

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101011000000

Octal: 135300

Duodecimal: 23800

Hexadecimal: bac0

Square: 2285604864

Square Root: 218.65040589946318

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 k is the average of four consecutive primes k-11, k-1, k+1 and k+11. A259025

Number of 3-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions. A187851

a(n) counts different values of i² + j² <= n² or number of distances from the origin to all integer points inside a circle of radius n. A47808

Number of nX4 0..2 arrays with no element unequal to more than four of its king-move neighbors and with new values introduced in order 0 sequentially upwards. A282053