Properties of the Number -223587

Two Hundred Twenty-Three Thousand Five Hundred Eighty-Seven

Basics

Value: -223588 → -223587 → -223586

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 7 ² × 13 ²

Divisors: 1, 3, 7, 9, 13, 21, 27, 39, 49, 63

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110100101100011

Octal: -664543

Duodecimal: -A9483

Hexadecimal: -36963

Square: 49991146569

Square Root: 472.8498704663035

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

n² * a(n) = 3*(3·n-2)² * a(n-1), with a(0) = 1. A276018

Numbers k with property that the sum of 70 successive primes starting with prime(k) is a square. A166255

Numbers whose square can be expressed as the sum of two positive cubes in more than one way. A51302

a(n) = (n+1)(n+2)²*(n+3)²*(n+4)(2n+5)/720. A114242

Numbers n such that n² can be expressed as the sum of 2 positive cubes in exactly 2 different ways. A145553

a(n) = AlexanderPolynomial[n] defined as Det[Transpose[S]-n S] where S is Kronecker Product of two 2 X 2 Seifert matrices {{-1, 1}, {0, -1}} [X] {{-1, 1}, {0, -1}} = {{1, -1, -1, 1}, {0, 1, 0, -1}, {0, 0, 1, -1}, {0, 0, 0, 1}}. A138849

Numbers whose square is both a sum and a difference of two positive cubes. A230716

Number of minimal total dominating sets in the n-pan graph. A303148