Properties of the Number -2804

Eight Hundred Four

Basics

Value: -2805 → -2804 → -2803

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 701

Divisors: 1, 2, 4, 701, 1402, 2804

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101011110100

Octal: -5364

Duodecimal: -1758

Hexadecimal: -af4

Square: 7862416

Square Root: 52.952809179494906

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

G.f.: A(x) = ∑_n=-oo..+oo (x - xⁿ)ⁿ. A290003

Coordination sequence for "reo-e" 3D uniform tiling. A299281

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (Lucas numbers). A24319

Positive integers n such that n¹⁴ + 1 is semiprime (A001358). A104335

Array read by antidiagonals: T(n,k) is the number of non-isomorphic n X n nonnegative integer matrices with all row and column sums equal to k up to permutations of rows and columns. A333733

Sum of largest parts of all partitions of n into odd parts. A92322

T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors. A187729

Number of partitions of n where the difference between consecutive parts is at most 6. A238866

Nonsquarefree numbers appearing exactly twice in A377783 (least nonsquarefree number > prime(n)). A378083

Positive discriminants of orders of quadratic fields with form class number 3. A391425