Properties of the Number 13449

Thirteen Thousand Four Hundred Forty-Nine

Basics

Value: 13448 → 13449 → 13450

Parity: odd

Prime: No

Previous Prime: 13441

Next Prime: 13451

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 4483

Divisors: 1, 3, 4483, 13449

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010010001001

Octal: 32211

Duodecimal: 7949

Hexadecimal: 3489

Square: 180875601

Square Root: 115.96982366115765

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250812

Third row of Pascal-(1,3,1) array A081578. A81585

Number T(n,k) of Dyck paths of semilength n such that the minimal number of peaks over all positive levels equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A288387

Numbers k such that k and 7·k are anagrams. A23091

Numbers k such that the decimal number concat(4,k) is a square. A273359

Numbers n such that 8ⁿ + 3 is prime. A217354

a(n) = 1250·n² - 1800·n + 649. A154358

Principal diagonal of the convolution array A213781. A213782

Numbers·whose digits can be permuted to produce a multiple of x. A245680

Semiprimes of the form 2·n + 1, where n is a square. A111351