Properties of the Number 42858

Forty-Two Thousand Eight Hundred Fifty-Eight

Basics

Value: 42857 → 42858 → 42859

Parity: even

Prime: No

Previous Prime: 42853

Next Prime: 42859

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 2381

Divisors: 1, 2, 3, 6, 9, 18, 2381, 4762, 7143, 14286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011101101010

Octal: 123552

Duodecimal: 20976

Hexadecimal: a76a

Square: 1836808164

Square Root: 207.02173798903343

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) = 81·n² + 9. A157888

Trajectory of 3 under map n->7n+1 if n odd, n->n/2 if n even. A37101

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 46. A31724

a(0)=7; a(n) = 7·a(n-1) + 1 if a(n-1) is odd, a(n) = a(n-1)/2 otherwise. A271623

Numerators of continued fraction convergents to sqrt(960). A42858