Properties of the Number -205216

Two Hundred Five Thousand Two Hundred Sixteen

Basics

Value: -205217 → -205216 → -205215

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 11 ² × 53

Divisors: 1, 2, 4, 8, 11, 16, 22, 32, 44, 53

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010000110100000

Octal: -620640

Duodecimal: -9A914

Hexadecimal: -321a0

Square: 42113606656

Square Root: 453.00772620342804

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

a(n) = ∑_{k=0..floor(n/3)} binomial(2·n-3·k, n). A105872

a(n) = ∑_{i=0..floor(q(n)/3)} binomial(n-3*(i+1), q(n)-3·i) with q(n) = ceiling((n-3)/2). A366107