Properties of the Number -3968

Nine Hundred Sixty-Eight

Basics

Value: -3969 → -3968 → -3967

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁷ × 31

Divisors: 1, 2, 4, 8, 16, 31, 32, 62, 64, 124

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -111110000000

Octal: -7600

Duodecimal: -2368

Hexadecimal: -f80

Square: 15745024

Square Root: 62.99206299209449

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

Triangle of tanh numbers. A111593

Triangle of coefficients of the polynomials (1 - x)ⁿ*A(n,x/(1 - x)), where A(n,x) are the Eulerian polynomials of A008292. A141720

a(n) = -(n - 4)*(n - 5)*(n - 12)/6. A167541

A symmetrical triangle sequence: T(n, k) = q^k + q^n-k - qⁿ, with q=4. A176227

Expansion of e.g.f.: sinh(log(1 + sin(x))). A9567

(1,1) entry of powers of the orthogonal design shown below. A90590

Expansion of ∏_k>=1 (1-x^k)³². A10837

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of (A143182 in square format). A203992

Triangle read by rows, T(n,k) = ∑_j=0..n (-1)^n+k+j A(n,j)*C(j,n-k), A(n,j) the Eulerian numbers; n >= 0, k >= 0. A225678

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = e/2. A279591