Properties of the Number 8424

Eight Thousand Four Hundred Twenty-Four

Basics

Value: 8423 → 8424 → 8425

Parity: even

Prime: No

Previous Prime: 8423

Next Prime: 8429

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ⁴ × 13

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 13, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000011101000

Octal: 20350

Duodecimal: 4A60

Hexadecimal: 20e8

Square: 70963776

Square Root: 91.78235124467012

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

Numbers k such that π(k) divides k. A57809

Expansion of 1/(1 - x - x² + x⁷ - x⁹). A225394

a(n) = n*(11·n + 3)/2. A254963

Numbers k such that σ (x) = k has exactly 12 solutions. A60676

8-almost primes p·q*r·s*t·u*v·w relatively prime to p+q+r+s+t+u+v+w. A110296

Number of ways of writing n as a sum of 10 squares. A144

Number of n-step walks on square lattice in the first quadrant which finish at distance n-3 from the x-axis. A5564

Primitive terms of A023197: numbers k such that σ(k)/k >= 3, but for every proper divisor, d∣k, d<k, σ(d)/d < 3. A388019

Values of n such that there are exactly 10 solutions to x² - y² = n with x > y >= 0. A257417

The third of the three sequences associated with the polynomial x³ - 2. A52103