Properties of the Number 19448

Nineteen Thousand Four Hundred Forty-Eight

Basics

Value: 19447 → 19448 → 19449

Parity: even

Prime: No

Previous Prime: 19447

Next Prime: 19457

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 11 × 13 × 17

Divisors: 1, 2, 4, 8, 11, 13, 17, 22, 26, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101111111000

Octal: 45770

Duodecimal: B308

Hexadecimal: 4bf8

Square: 378224704

Square Root: 139.45608627808252

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

Binomial coefficient C(2n+1, n-1). A2054

a(n) = binomial coefficient C(n,7). A580

Triangle read by rows: T(n, k) is the number of diagonal dissections of a convex n-gon into k+1 regions. A33282

Right-hand side of odd-numbered rows of Pascal's triangle. A111418

Triangle read by rows: T(n,k) = C(2·n - k,n), 0 <= k <= n. A92392

Triangle obtained by adding a leading diagonal 1,0,0,0,... to A033282. A86810

Triangle of even numbered entries of odd numbered rows of Pascal's triangle A007318. A91042

a(n) = binomial coefficient C(n,10). A1287

Triangle read by rows: T(n,k) is the number of Schroeder paths of semilength n containing exactly k peaks but no peaks at level one (n >= 1; 0 <= k <= n-1). A126216

Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1). A103327