Properties of the Number 63690

Sixty-Three Thousand Six Hundred Ninety

Basics

Value: 63689 → 63690 → 63691

Parity: even

Prime: No

Previous Prime: 63689

Next Prime: 63691

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 11 × 193

Divisors: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111100011001010

Octal: 174312

Duodecimal: 30A36

Hexadecimal: f8ca

Square: 4056416100

Square Root: 252.3687777836236

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) = ∑_k=0..n 3^k * binomial(n+2,k+2) * binomial(2·k+4,k+4). A387310

a(n) = [xⁿ] ∏_k=0..n-1 (1 + k·x)³. A384018

Triangle read by rows giving numbers H(n,k), number of classes of twin-tree-rooted maps with n edges whose root bond contains k edges. A260040

Values of k such that k - 1 and k + 1 are twin primes and 3·k⁹ - 1 and 3·k⁹ + 1 are also twin primes. A108134

Species of ordered Latin bi-trades of size n. A133173

Expansion of e.g.f.: x²*(exp(x)-1)⁴. A52792

Numbers n such that n-th prime - φ(n) - d(n) = (n+1)-th prime - φ(n+1) - d(n+1), where d(n) = number of divisors of n. A63690