Properties of the Number -3946

Nine Hundred Forty-Six

Basics

Value: -3947 → -3946 → -3945

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 1973

Divisors: 1, 2, 1973, 3946

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111101101010

Octal: -7552

Duodecimal: -234A

Hexadecimal: -f6a

Square: 15570916

Square Root: 62.81719509815764

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

Determinant of the n X n matrix whose element (i,j) equals the floor( φ^i-j + 1). A71784

Partial sums of A299287. A299288

Array read by antidiagonals: T(n,k) = number of nonequivalent dissections of a polygon into n k-gons by nonintersecting diagonals up to rotation and reflection (k >= 3). A295260

Number of planar hexagon trees with n hexagons. A4127

a(n) = ∑_k=1..n floor(n/k) * 5^k-1. A344816

Numbers that have 8 terms in their Zeckendorf representation. A179248

Compound filter: a(n) = T(A032742(n), A046523(n)), where T(n,k) is sequence A000027 used as a pairing function. A285729

a(n) = ∑_k=0..n binomial(n,k)³ * 3^k. A206180

a(0)=a(1)=1, a(n)=a(n-2)+(n+1)*a(n-1). A58279

Maximum number of regions defined by n zigzag-lines in the plane when a zigzag-line is defined as consisting of two parallel infinite half-lines joined by a straight line segment. A117625