Properties of the Number 41991

Forty-One Thousand Nine Hundred Ninety-One

Basics

Value: 41990 → 41991 → 41992

Parity: odd

Prime: No

Previous Prime: 41983

Next Prime: 41999

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 13997

Divisors: 1, 3, 13997, 41991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010000000111

Octal: 122007

Duodecimal: 20373

Hexadecimal: a407

Square: 1763244081

Square Root: 204.91705639111646

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

E.g.f. A(x) satisfies A(x) = 1 + (1 - exp(-x)) * A(1 - exp(-x)). A353177

Numbers k such that the "inventory" A063850 of k is a perfect square. A79465

Denominators of continued fraction convergents to sqrt(518). A41991