Properties of the Number -286

Two Hundred Eighty-Six

Basics

Value: -287 → -286 → -285

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 11 × 13

Divisors: 1, 2, 11, 13, 22, 26, 143, 286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: Yes

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Representations

Binary: -100011110

Octal: -436

Duodecimal: -1BA

Hexadecimal: -11e

Square: 81796

Square Root: 16.911534525287763

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

Expansion of (∏_j>=1 (1-(-x)^j) - 1)¹³ in powers of x. A47638

Array of coefficients of polynomials related to integer powers of the generating function of Catalan numbers A000108. A115139

FP3 polynomials related to the generating functions of the columns of the A156921 matrix. A156927

Riordan array (1/(1+x), x/(1+x)²), inverse array is A039599. A129818

Riordan array (1/(1+x)³,x/(1+x)²). A109954

Inverse of twin-prime related triangle A111125. A113187

a(n) = ∑_k=1..n μ(k)*k³. A336277

Triangle of coefficients of characteristic polynomial of M_n, the n X n matrix M_i,j = min(i,j). A76756

Expansion of theta₃(q) / theta₃(q²) in powers of q. A80015

Expansion of ∏_k>0 ((1-x^5k-2) * (1-x^5k-3)/((1-x^5k-1) * (1-x^5k-4)))² in powers of x. A285442