Properties of the Number 41839

Forty-One Thousand Eight Hundred Thirty-Nine

Basics

Value: 41838 → 41839 → 41840

Parity: odd

Prime: No

Previous Prime: 41813

Next Prime: 41843

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 43 × 139

Divisors: 1, 7, 43, 139, 301, 973, 5977, 41839

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1010001101101111

Octal: 121557

Duodecimal: 20267

Hexadecimal: a36f

Square: 1750501921

Square Root: 204.54583838347824

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302670

G.f. satisfies: A(x) = x² + Series_Reversion(x - x·A(x)). A212923

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 43 ones. A31811

30 'Reverse and Add' steps are needed to reach a palindrome. A65319

Number of 2Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4. A240413

Number of nX3 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302665

Minimal conductors c of cyclic cubic number fields K with elementary bicyclic 3-class group Cl₃(K)=(3,3) and second 3-class group M=Gal(F₃²(K)/K) of assigned coclass cc(M)=0,1,2,3,... A380103

Denominators of continued fraction convergents to sqrt(440). A41839