Properties of the Number 42086

Forty-Two Thousand Eighty-Six

Basics

Value: 42085 → 42086 → 42087

Parity: even

Prime: No

Previous Prime: 42083

Next Prime: 42089

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 11 × 1913

Divisors: 1, 2, 11, 22, 1913, 3826, 21043, 42086

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010010001100110

Octal: 122146

Duodecimal: 20432

Hexadecimal: a466

Square: 1771231396

Square Root: 205.14872653760247

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

Smallest multiple of n with property that digits are even and each digit is two less (mod 10) than the previous digit, if such a multiple exists; otherwise -1. A62885

a(n) = T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A026681. A26689

Numerators of continued fraction convergents to sqrt(567). A42086