Properties of the Number 63808

Sixty-Three Thousand Eight Hundred Eight

Basics

Value: 63807 → 63808 → 63809

Parity: even

Prime: No

Previous Prime: 63803

Next Prime: 63809

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁶ × 997

Divisors: 1, 2, 4, 8, 16, 32, 64, 997, 1994, 3988

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111100101000000

Octal: 174500

Duodecimal: 30B14

Hexadecimal: f940

Square: 4071460864

Square Root: 252.6024544615511

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically. A232431

Omit first term from A160539 and divide by 7. A160549

Somos's sequence {b(6,n)} defined in comment in A078495: a(0)=a(1)=...=a(14)=1; for n>=15, a(n)=(a(n-1)*a(n-14)+a(n-7)*a(n-8))/a(n-15). A271952

High-temperature expansion of Ising model susceptibility chi₂ for 4-d cubic lattice. A10041

a(n) = 2·a(n-2) + 2·a(n-3) for n >= 3, where a(0) = 2, a(2) = 4, a(3) = 7. A287439

Numerators of continued fraction convergents to sqrt(653). A42254

Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically. A232425

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232839

Spherical growth series for Z as generated by {2, 3}. A63808