Properties of the Number 19194

Nineteen Thousand One Hundred Ninety-Four

Basics

Value: 19193 → 19194 → 19195

Parity: even

Prime: No

Previous Prime: 19183

Next Prime: 19207

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 457

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 457, 914

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101011111010

Octal: 45372

Duodecimal: B136

Hexadecimal: 4afa

Square: 368409636

Square Root: 138.54241227869537

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

Numbers n such that Bernoulli number B_n has denominator 1806. A272139

a(n) = 686·n - 14. A157363

a(n) = ∑_{i,j,k in Z and i² + j² + k² <= n} i² + j² + k². A14203

a(n) = n·A007504(n)/2 = n*(sum of first n primes)/2. A156778

Antidiagonal sums of A163280. A163983

Multiplicity of highest weight (or singular) vectors associated with character chi₇₇ of Monster module. A34465

G.f. A(x) satisfies: [xⁿ] A(x)ⁿ⁺¹ = [xⁿ] (1 + x·A(x)ⁿ)ⁿ⁺¹ for n>=0. A302702

a(n) = ∑_k=0..n (-1)^k * binomial(3·n+2·k+1,n-k). A390544

Susceptibility series H₄ for 2-dimensional Ising model (divided by 2). A55856

Run lengths of digits when concatenating Roman numerals less than 4000, cf. A093796. A222581