Properties of the Number 19027

Nineteen Thousand Twenty-Seven

Basics

Value: 19026 → 19027 → 19028

Parity: odd

Prime: No

Previous Prime: 19013

Next Prime: 19031

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 53 × 359

Divisors: 1, 53, 359, 19027

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101001010011

Octal: 45123

Duodecimal: B017

Hexadecimal: 4a53

Square: 362026729

Square Root: 137.93839204514455

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) = p(n)*p(n+1)*(p(n+1) - p(n)) - 1, where p(n) = prime(n). A383241

Semiprimes which are the sum of three distinct positive cubes in two or more distinct ways. A180089

G.f. A(x) satisfies: A(A(x)) - A(A(x))² = x + x². A182399

Integers n > 10553 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10553. A63061

a(n) = floor(∑_{k=n³..(n+1)³} k^1/3). A374384

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 27 ones. A31795

G.f.: exp( ∑_n>=1 A056789(n)*xⁿ/n ), where A056789(n) = ∑_k=1..n lcm(k,n)/gcd(k,n). A226455

Triangle: Number of asymmetric self-converse semigroups of order n with k idempotents. A58169

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LIO = Liottite (Ca,Na2,K2)9[Al18Si18O72] starting with a T1 atom. A19027