Properties of the Number 18197

Eighteen Thousand One Hundred Ninety-Seven

Basics

Value: 18196 → 18197 → 18198

Parity: odd

Prime: No

Previous Prime: 18191

Next Prime: 18199

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 31 × 587

Divisors: 1, 31, 587, 18197

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011100010101

Octal: 43425

Duodecimal: A645

Hexadecimal: 4715

Square: 331130809

Square Root: 134.89625643434292

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 whose square in base 2 is a palindrome. A3166

Odd numbers producing 4 odd numbers in the Collatz iteration. A198587

Numbers k whose binary expansion contains 2 adjacent 1's and A391571(k) = k. A391581

Number of configurations of the sliding block 8-puzzle that require a minimum of n moves to be reached, starting with the empty square at mid-side. A89483

Numerators of coefficients in expansion of 1/(2 + cos(sqrt(x))). A279232

Odd numbers whose square's binary reversal is also a square. A229766

Round(1000·x), where·is the solution to x = 5^n-x. A104744

Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically. A253395

Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11. A254950

Numbers k >= 0 such that the interval [A000217(k), A000217(k + 1)] contains at least one Fibonacci number (A000045). A388653