Properties of the Number 27218

Twenty-Seven Thousand Two Hundred Eighteen

Basics

Value: 27217 → 27218 → 27219

Parity: even

Prime: No

Previous Prime: 27211

Next Prime: 27239

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 31 × 439

Divisors: 1, 2, 31, 62, 439, 878, 13609, 27218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101001010010

Octal: 65122

Duodecimal: 13902

Hexadecimal: 6a52

Square: 740819524

Square Root: 164.97878651511533

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 n X 3 binary matrices under row and column permutations and column complementations. A6381

T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281139

a(0) = 1, a(n) = 21·n² + 2 for n>0. A10011

Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A235084

Number of (n+1) X (6+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A235085

Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and every three consecutive elements having its maximum within 3 of its minimum. A263691

Number of nX4 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281135

Number of n X 7 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281138

Number of primes of the form 4m+3 <= n minus number of primes of the form 4m+1 <= n. A66520

T(n,k) is the number of (n+1) X (k+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A235087