Properties of the Number 42047

Forty-Two Thousand Forty-Seven

Basics

Value: 42046 → 42047 → 42048

Parity: odd

Prime: No

Previous Prime: 42043

Next Prime: 42061

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 19 × 2213

Divisors: 1, 19, 2213, 42047

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010000111111

Octal: 122077

Duodecimal: 203BB

Hexadecimal: a43f

Square: 1767950209

Square Root: 205.05365151588987

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

Sum of numerator and denominator in a rational approximation j/k of q = log(2)/log(3), such that j/k - q is a new minimum, i.e., q is approximated from above. A355515

Denominators of continued fraction convergents to sqrt(547). A42047

"1-ply" palindromic primes; see Comments. A208361