Properties of the Number 798

Seven Hundred Ninety-Eight

Basics

Value: 797 → 798 → 799

Parity: even

Prime: No

Previous Prime: 797

Next Prime: 809

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

Denominator of Bernoulli number B_n. A27642

Denominators of Bernoulli numbers B_2n. A2445

Products of exactly four distinct primes. A46386

a(n) = n*(4·n+1). A7742

Triangle formed from odd-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials U_n(x). Sometimes called Catalan's triangle. A39598

Coordination sequence for "reo" 3D uniform tiling. A299279

Coordination sequence for "crs" 3D uniform tiling formed from tetrahedra and truncated tetrahedra. A299268

Expansion of g.f. x*(1 + 3·x)/((1 + x)*(1 - x)³). A35608

[s(k)-s(j)]/2, where the pairs (k,j) are given by A205837 and A205838. A205840

a(n) = 2·n² - 2. A54000