Properties of the Number 42678

Forty-Two Thousand Six Hundred Seventy-Eight

Basics

Value: 42677 → 42678 → 42679

Parity: even

Prime: No

Previous Prime: 42677

Next Prime: 42683

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 2371

Divisors: 1, 2, 3, 6, 9, 18, 2371, 4742, 7113, 14226

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011010110110

Octal: 123266

Duodecimal: 20846

Hexadecimal: a6b6

Square: 1821411684

Square Root: 206.5865436082418

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

Number of nX2 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero. A304143

a(n) = ∑_y=1..n ∑_x=1..n floor((x^k + y^k)^1/k) with k = 3. A211792

The fixed points of A355636. A355637

Numerators of continued fraction convergents to sqrt(869). A42678