Properties of the Number -798

Seven Hundred Ninety-Eight

Basics

Value: -799 → -798 → -797

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 19

Divisors: 1, 2, 3, 6, 7, 14, 19, 21, 38, 42

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100011110

Octal: -1436

Duodecimal: -566

Hexadecimal: -31e

Square: 636804

Square Root: 28.24889378365107

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

a(n) = (-n³ + 9n² - 5n + 3)/3. A161702

Matrix inverse of triangle A107862. A107865

Expansion of ∑_k>0 x^2·k/(1+x^k)⁶. A363614

Low temperature series for spin-1/2 Ising partition function on 4D simple cubic lattice. A30045

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=min(3i-2,3j-2) (A204028). A204029

1-gonal pyramidal numbers. A254749

Difference between sums of quadratic residues and non-residues modulo n that are coprime to n. A255643

Dirichlet g.f.: 1 / (ζ(s) * ζ(s-1) * ζ(s-2)). A328254

G.f. satisfies A(x) = 1 + x·A(x * (1 - x³)). A360897

Triangle, read by rows, T(n,k,m) = (m*(n-k)+1)*binomial(n-1, k-1) + (m·k+1)* binomial(n-1, k) - m·k*(n-k)*binomial(n-2, k-1), with m = 3. A157174