Properties of the Number -205770

Two Hundred Five Thousand Seven Hundred Seventy

Basics

Value: -205771 → -205770 → -205769

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 19 ³

Divisors: 1, 2, 3, 5, 6, 10, 15, 19, 30, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010001111001010

Octal: -621712

Duodecimal: -9B0B6

Hexadecimal: -323ca

Square: 42341292900

Square Root: 453.61878267990625

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 Catalan knight paths from (0,0) to (n,2) in the region between and on the lines y=0 and y=3. (See A096587 for the definition of Catalan knight.). A99330

a(n) = ((n-th prime)⁵-(n-th prime)³)/12. A138437

Number of walks within N² (the first quadrant of Z²) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (1, 0), (1, 1)}. A151289

a(n) = ∑_{-n <= a, b, c <= n} (b² - 4·a*c). A385029