Properties of the Number 13643

Thirteen Thousand Six Hundred Forty-Three

Basics

Value: 13642 → 13643 → 13644

Parity: odd

Prime: No

Previous Prime: 13633

Next Prime: 13649

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 1949

Divisors: 1, 7, 1949, 13643

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010101001011

Octal: 32513

Duodecimal: 7A8B

Hexadecimal: 354b

Square: 186131449

Square Root: 116.80325337934727

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

Number of subsets of {1, 2, ..., n} containing n and having <=8 pairwise coprime elements. A186992

Number of invertible Steinhaus matrices of order n. A65763

Numbers n such that 10ⁿ - 77 is prime. A178436

Numbers k such that the continued fraction for sqrt(k) has period 3. A13643

Number of tilings of a 4 X 3n rectangle using 4n trominoes of any shape. A233339

Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A238075