Properties of the Number 18343

Eighteen Thousand Three Hundred Forty-Three

Basics

Value: 18342 → 18343 → 18344

Parity: odd

Prime: No

Previous Prime: 18341

Next Prime: 18353

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 17 × 83

Divisors: 1, 13, 17, 83, 221, 1079, 1411, 18343

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011110100111

Octal: 43647

Duodecimal: A747

Hexadecimal: 47a7

Square: 336465649

Square Root: 135.43633190543812

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

Triangle T(n,k) read by rows of number of ways k domicules can be placed on an n X n square (n >= 0, 0 <= k <= floor(n²/2)). A243424

Number of permutations of length n which avoid the patterns 231, 4123. A116703

Composite squarefree numbers n such that p(i)-9 divides n+9, where p(i) are the prime factors of n. A225709

a(n) = A077702(n+1)/A077702(n). A77703

Number of ways 4 domicules can be placed on an n X n square. A243466

Number of ways half the maximal number of domicules can be placed on an n X n square. A243511

Numbers k such that 65·2^k+1 is prime. A32382

a(n) = A088418(n+1)/A088418(n). A88419

Expansion of (7 +4·x -5·x² -7·x³) / ((1-x)*(1-x²-x³)). A103485

Number obtained by concatenating the cubes of the digits of prime(n). A277047