Properties of the Number 40042

Forty Thousand Forty-Two

Basics

Value: 40041 → 40042 → 40043

Parity: even

Prime: No

Previous Prime: 40039

Next Prime: 40063

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 20021

Divisors: 1, 2, 20021, 40042

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110001101010

Octal: 116152

Duodecimal: 1B20A

Hexadecimal: 9c6a

Square: 1603361764

Square Root: 200.10497245196083

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) = 32·n² - 40·n + 10. A343578

Continued fraction for sqrt(50) = 5·sqrt(2). A40042

Number of tilings of an n X 10 rectangle using integer-sided rectangular tiles of area n. A220135