Properties of the Number 18194

Eighteen Thousand One Hundred Ninety-Four

Basics

Value: 18193 → 18194 → 18195

Parity: even

Prime: No

Previous Prime: 18191

Next Prime: 18199

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 827

Divisors: 1, 2, 11, 22, 827, 1654, 9097, 18194

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011100010010

Octal: 43422

Duodecimal: A642

Hexadecimal: 4712

Square: 331021636

Square Root: 134.8851363197591

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

Denominators of continued fraction for left factorial. A56890

Main diagonal of the square array A096583, in which the n-th diagonal equals the convolution of the n-th row with the antidiagonal sums (A096584). A96585

a(n) = n*(15·n² - 15·n + 4). A272134

G.f.: A(x) = exp( ∑_n>=1 A179305(n)*xⁿ/n ), where A179305(n) = ∑_d∣n C(n,d)*σ(d). A179304

Numbers n such that n!3 + 3 is prime, where n!3 = n!!! is a triple factorial number (A007661). A249400

Numbers k such that (10^k+4*7 - 36763)/9 is prime (k > 0). A265309

Number of permutations of 1..n containing the relative rank sequence { 135246 } at any spacing. A159097

T(n,k)=Number of (n+2)X(k+2) 0..2 matrices with each 3X3 subblock idempotent. A224606

Number of steps for S(S(..S(n)..)) to converge, where S is the Kempner function A002034. A18194

Number of 3Xn 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors. A232025