Properties of the Number 12393

Twelve Thousand Three Hundred Ninety-Three

Basics

Value: 12392 → 12393 → 12394

Parity: odd

Prime: No

Previous Prime: 12391

Next Prime: 12401

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 17

Divisors: 1, 3, 9, 17, 27, 51, 81, 153, 243, 459

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000001101001

Octal: 30151

Duodecimal: 7209

Hexadecimal: 3069

Square: 153586449

Square Root: 111.32385189167684

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

Triangular array: the fusion of (x+1)ⁿ and (x+2)ⁿ; see Comments for the definition of fusion. A193722

a(n) = n*(n + 1)*(5·n - 4)/2. A237616

3rd binomial transform of (1,2,0,0,0,0,0,0,...). A81038

Sheffer triangle (exp(x), exp(3·x) - 1). Named S2[3,1]. A282629

a(n) = n*(n + 1)*(n² - 3·n + 5)/6. A6484

a(n) = ∑_{k >= 0} binomial(n,5·k). A139398

a(n) = ∑_k>=0 binomial(n,5·k+1). A133476

a(n) = 17·n². A244630

Paradigm shift sequence for (4,5) production scheme with replacement. A246099

Expansion of (1-x)/((1-2x)(1+x-x²)). A52964