Properties of the Number -218493

Two Hundred Eighteen Thousand Four Hundred Ninety-Three

Basics

Value: -218494 → -218493 → -218492

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 × 2207

Divisors: 1, 3, 9, 11, 33, 99, 2207, 6621, 19863, 24277

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110101010101111101

Octal: -652575

Duodecimal: -A6539

Hexadecimal: -3557d

Square: 47739191049

Square Root: 467.43234804621727

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 each row and column prime, read as a base 3 number with top and left being the most significant digits. A262122

a(0) = ... = a(3) = 1; a(n) = a(n-4) + ∑_k=0..n-5 a(k) * a(n-k-5). A343305

Number of (n+3)X(n+3) binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock. A188096

Number of (n+1)X(3+1) 0..2 arrays with each row and column prime, read as a base 3 number with top and left being the most significant digits. A262119

Number of (n+1)X(5+1) 0..2 arrays with each row and column prime, read as a base 3 number with top and left being the most significant digits. A262121