Properties of the Number -2863

Eight Hundred Sixty-Three

Basics

Value: -2864 → -2863 → -2862

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 × 409

Divisors: 1, 7, 409, 2863

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100101111

Octal: -5457

Duodecimal: -17A7

Hexadecimal: -b2f

Square: 8196769

Square Root: 53.50700888668698

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 numerators of coefficients of the polynomial Q²_m(n) defined by the recursion Q²_0(n)=1; for m>=1, Q²_m(n) = ∑_i=1..n i²*Q²_(m-1)(i). For m>=0, the denominator for all 3·m+1 terms of the m-th row is A202367(m+1). A175669

G.f. A(x) satisfies: A(x) = A(x² - x⁵)/x. A350477

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 229", based on the 5-celled von Neumann neighborhood. A270949

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood. A271408

Number of sublattices of index n in generic 3-dimensional lattice. A1001

a(n) = 4·n² - 10·n + 7. A54554

Number of integer partitions of n whose parts do not have the same mean as median. A359894

D-toothpick sequence of the third kind starting with a single toothpick. A220500

Number of compositions of n with weakly increasing differences. A325546

a(n) = p² + p + 1 where p runs through the primes. A60800