Properties of the Number 19263

Nineteen Thousand Two Hundred Sixty-Three

Basics

Value: 19262 → 19263 → 19264

Parity: odd

Prime: No

Previous Prime: 19259

Next Prime: 19267

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 6421

Divisors: 1, 3, 6421, 19263

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100111111

Octal: 45477

Duodecimal: B193

Hexadecimal: 4b3f

Square: 371063169

Square Root: 138.79121009631697

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

G.f.: ∑_n>=0 ∏_k=1..n Series_Reversion( x/(1 + x^k) ). A206290

Number of vertices in a Y-shaped polygon with equal arms of length n (see the Comments in A335861 for definition). A337790

Triangle T(n,k) = A015442(k) - A015442(n) + A015442(n-k) read by rows. A176264

Number of length n+6 0..2 arrays with at most one downstep in every 6 consecutive neighbor pairs. A255105

Number of length n+6 0..2 arrays with at most one downstep in every n consecutive neighbor pairs. A255113

∑_{i in 1..p-1, j in 1..p-1, i·j mod p = 1} i·j, where p = n-th prime. A272650

Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 92. A31590

Engel expansion of the Landau-Ramanujan constant K (A064533). A96190

T(n,k)=Number of length n+k 0..2 arrays with at most one downstep in every k consecutive neighbor pairs. A255107

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite WEI = Weinebeneite Ca4[Be12P8O32(OH)8].16H2O starting from a T2 atom. A19263