Properties of the Number -863

Eight Hundred Sixty-Three

Basics

Value: -864 → -863 → -862

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 863

Divisors: 1, 863

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101011111

Octal: -1537

Duodecimal: -5BB

Hexadecimal: -35f

Square: 744769

Square Root: 29.376861643136763

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

Numerators of Cauchy numbers of first type. A6232

Numerators of logarithmic numbers (also of Gregory coefficients G(n)). A2206

Coefficients of the '6th-order' mock θ function ψ(q). A53269

Expansion of ∏_m>=1 ((1+q^2·m-1)/(1+q^2·m))³. A29840

Numerators of upper right triangle of a(i,j) = Integral_x=i..i+1 ∑_k=0..j A048994(j,k)*x^k. A140825

Triangle of coefficients of Gaussian polynomials [2n+5,4]_q represented as finite sum of terms (1+q²)^k*q^g-k, where k = 0,1,...,g with g=4n+2. A267484

G.f. A(x,y) satisfies: A(x,y) = x·y + 1/A(x,x·y), with A(0,y) = 1. A275760

Triangle read by rows. Row n gives the numerators of the coefficients of the Bernoulli polynomials of the second kind (in rising powers). A290317

a(n) = n! * ∑_{k=0..floor(n/5)} (-n/5)^k / (k! * (n-5·k)!). A362320

Triangle of subsequences of A140825 with a mirror symmetry. A141045