Properties of the Number 20244

Twenty Thousand Two Hundred Forty-Four

Basics

Value: 20243 → 20244 → 20245

Parity: even

Prime: No

Previous Prime: 20233

Next Prime: 20249

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 7 × 241

Divisors: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111100010100

Octal: 47424

Duodecimal: B870

Hexadecimal: 4f14

Square: 409819536

Square Root: 142.28141129465928

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

Let f(k) = exp(π*sqrt(k)); sequence gives numbers k such that ceiling(f(k)) - f(k) < 1/10³. A127022

Numbers k such that k | sigma₈(k). A55712

a(n) = ∑_{k=0..floor(n/3)} C(n-k,2·k) * 4^n-3·k. A99781

Total number of inversions in all permutations of [n] where the descent set equals the subset of odd elements in [n-1]. A337193

The number of partitions of n without repeated odd parts having more even parts than odd parts. A340623

Number of ways to write n as an ordered sum of seven positive Fibonacci numbers (with a single type of 1). A357694

a(n) = 2ⁿ mod n³. A233442

Integers n where n³ + (n+1)³ is a Taxicab number A001235. A259836

Diagonal of array A085205. A85228

Maximum number of rational points on a smooth absolutely irreducible projective curve of genus 2 over the field F₃ⁿ. A169878