Properties of the Number 91728

Ninety-One Thousand Seven Hundred Twenty-Eight

Basics

Value: 91727 → 91728 → 91729

Parity: even

Prime: No

Previous Prime: 91711

Next Prime: 91733

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 7 ² × 13

Divisors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 13

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011001010000

Octal: 263120

Duodecimal: 45100

Hexadecimal: 16650

Square: 8414025984

Square Root: 302.8663071389751

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

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

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

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

a(n) = n*(n+1)*(n+2)²/6. A4320

Triangle T(n,k), 0 <= k <= n, read by rows, given by [1,1,1,1,1,1,1,...] δ [0,1,0,1,0,1,0,1,0,...] where δ is the operator defined in A084938. A133336

Numbers that are the sum of four third powers in ten or more ways. A345155

Numbers n such that n=(d₁+5)(d₂+5)*...*(d_k+5), where d₁ d₂ ... d_k is the decimal expansion of n. A97371

Numbers that are the sum of four third powers in exactly ten ways. A345156

Number of diagonal dissections of a convex (n+6)-gon into n regions. A7160

There exists some k>0 such that n is the product of (k + digits of n). A55482