Properties of the Number 19604

Nineteen Thousand Six Hundred Four

Basics

Value: 19603 → 19604 → 19605

Parity: even

Prime: No

Previous Prime: 19603

Next Prime: 19609

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 13 ² × 29

Divisors: 1, 2, 4, 13, 26, 29, 52, 58, 116, 169

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100110010010100

Octal: 46224

Duodecimal: B418

Hexadecimal: 4c94

Square: 384316816

Square Root: 140.0142849854971

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) = (-1)ⁿ * [xⁿ] ∑_k>=1 x^k-1/(1+3·x^k). A101561

a(n) = 29·n². A244635

a(0) = 1, a(n) = 18·n² + 2 for n>0. A10008

McKay-Thompson series of class 18B for the Monster group. A58532

McKay-Thompson series of class 18B for the Monster group with a(0) = 2. A215407

Distance from Fibonacci(n) to the next perfect square. A216223

a(n) = 16·n² + 4. A158444

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 70. A31748

Bond series for second parallel moment of Kagome lattice. A120547

Number of n X 6 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 1 1 vertically. A208778