Properties of the Number -205701

Two Hundred Five Thousand Seven Hundred One

Basics

Value: -205702 → -205701 → -205700

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 68567

Divisors: 1, 3, 68567, 205701

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010001110000101

Octal: -621605

Duodecimal: -9B059

Hexadecimal: -32385

Square: 42312901401

Square Root: 453.54272125126204

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 nonnegative solutions to (x₁)² + (x₂)² + ... + (x₁₀)² <= n. A341405

Sums of squared coefficients in the negative powers of the Catalan function: a(n) = ∑_k=1..n+1 [x^n-k+1] 1/C(x²)^k, where C(x) is the g.f. of A000108. A132459

a(n) = 1 - (7/6)*n + (2/3)*n³ + (1/2)*n⁴. A46998

Numbers k such that the sum of iterations of the alternating sum of divisors function A071324 starting from k is equal to 2·k. A333263