Properties of the Number 19934

Nineteen Thousand Nine Hundred Thirty-Four

Basics

Value: 19933 → 19934 → 19935

Parity: even

Prime: No

Previous Prime: 19927

Next Prime: 19937

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 9967

Divisors: 1, 2, 9967, 19934

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100110111011110

Octal: 46736

Duodecimal: B652

Hexadecimal: 4dde

Square: 397364356

Square Root: 141.1878181713989

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

Numbers k such that 2^k + 13 is prime. A102634

The number of 1 X n Haunted Mirror Maze puzzles with a unique solution ending with a mirror. A204091

a(n) = 5·a(n-2) - 2·a(n-4), with initial terms 0,1,2,4. A79162

a(n) = A000043(n) - 3. A139480

Expansion of g.f. -2·x/(1 - 5·x + 2·x²). A106709

a(1) = 1. If a(n) is composite, a(n+1) = 2·a(n)+1; otherwise, a(n+1) = 2·a(n). A125050

Elements of A011185 that are also the sum of a pair of distinct elements of A011185. A133605

a(n) = 5·a(n-2) - 2·a(n-4), n >= 4. A109165

Numbers n such that σ(Rev(φ(n))) = φ(Rev(σ(n))), where σ is the sum of divisors and φ the Euler totient function. A252255

G.f.: ∑_n=-oo..+oo xⁿ * (1 - xⁿ)^3·n. A268298