Properties of the Number 13431

Thirteen Thousand Four Hundred Thirty-One

Basics

Value: 13430 → 13431 → 13432

Parity: odd

Prime: No

Previous Prime: 13421

Next Prime: 13441

Digit Sum: 12

Digital Root: 3

Palindrome: Yes

Factorization: 3 × 11 ² × 37

Divisors: 1, 3, 11, 33, 37, 111, 121, 363, 407, 1221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010001110111

Octal: 32167

Duodecimal: 7933

Hexadecimal: 3477

Square: 180391761

Square Root: 115.89219128138012

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

G.f.: ∏_{k>=1, j>=1} (1+x^j·k²). A280451

Palindromes with exactly 4 prime factors (counted with multiplicity). A46330

Four-column table read by rows: number of nonisomorphic systems of catafusenes in an example (see Cyvin et al. (1994) for precise definition). A121178

a(n) = smallest palindrome > a(n-1) such that a(1)*a(2)*...*a(n) + 1 is prime with a(1) = 2. A51896

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 606", based on the 5-celled von Neumann neighborhood. A283259

Numbers which are products of repunits. A308365

Palindromes n such that 10n01 is a prime. A99744

Sum of digits of square is sum of square of digits. A165550

Palindromic mountain numbers. A173070

Mark each point on the n X n X n X n grid with the number of points that are visible from it; a(n) is the number of distinct values in the grid. A339947