Properties of the Number 47838

Forty-Seven Thousand Eight Hundred Thirty-Eight

Basics

Value: 47837 → 47838 → 47839

Parity: even

Prime: No

Previous Prime: 47837

Next Prime: 47843

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 7 × 17 × 67

Divisors: 1, 2, 3, 6, 7, 14, 17, 21, 34, 42

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101011011110

Octal: 135336

Duodecimal: 23826

Hexadecimal: bade

Square: 2288474244

Square Root: 218.71899780311722

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

Triangle read by rows: matrix cube of the Stirling2 triangle A008277. A39811

Decimal number representations of hexadecimal numbers whose form spells an American-English word found in a standard dictionary in lexicographic order. A132675

Decimal number representations of hexadecimal numbers whose form spells an American-English word found in a standard dictionary in numerical order. A132676

Numbers k such that k·A001414(k)+1 is the square of a prime. A343141

Numbers k such that k and k² use only the digits 2, 3, 4, 7 and 8. A137074

Number of 6 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281210

a(n) = floor(n²/2) - 1. A47838

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281205