Properties of the Number 19692

Nineteen Thousand Six Hundred Ninety-Two

Basics

Value: 19691 → 19692 → 19693

Parity: even

Prime: No

Previous Prime: 19687

Next Prime: 19697

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 547

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 547

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100110011101100

Octal: 46354

Duodecimal: B490

Hexadecimal: 4cec

Square: 387774864

Square Root: 140.32818676231798

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

Sum of 12 nonzero 8th powers. A3390

Sum of 10 positive 9th powers. A3399

a(n) = 3ⁿ + n. A104743

Sums of two powers of 3. A55235

Sums of 2 distinct powers of 3. A38464

Becomes prime after n iterations of f(x) = σ(x)-1 (least inverse of A039655). A39656

Expansion of phi_{9, 2}(x) where phi_{r, s}(x) = ∑_{n, m>0} m^r * n^s * x^m·n. A282753

Triangle read by rows: (1/4) * (A007318³ - A007318^-1) as infinite lower triangular matrices. A131049

Number of shapes of grid-filling curves of order 4·n+1 (on the square grid) with turns by +-90 degrees that are generated by Lindenmayer-systems with just one symbol apart from the turns. A265685

Number of pentagons in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A332608