Properties of the Number 42191

Forty-Two Thousand One Hundred Ninety-One

Basics

Value: 42190 → 42191 → 42192

Parity: odd

Prime: No

Previous Prime: 42187

Next Prime: 42193

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 31 × 1361

Divisors: 1, 31, 1361, 42191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011001111

Octal: 122317

Duodecimal: 204BB

Hexadecimal: a4cf

Square: 1780080481

Square Root: 205.40447901640314

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

a(n) = (8·n³ + 15·n² + 13·n)/6. A332698

Number of partitions satisfying cn(0,5) <= cn(1,5) + cn(4,5). A39839

Denominators of continued fraction convergents to sqrt(620). A42191