Properties of the Number 20243

Twenty Thousand Two Hundred Forty-Three

Basics

Value: 20242 → 20243 → 20244

Parity: odd

Prime: No

Previous Prime: 20233

Next Prime: 20249

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 31 × 653

Divisors: 1, 31, 653, 20243

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111100010011

Octal: 47423

Duodecimal: B86B

Hexadecimal: 4f13

Square: 409779049

Square Root: 142.27789708876077

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

Sum of all the parts in the partitions of n into 10 parts. A326588

Sum of terms of n-th group in A075383. A75386

Prime time numbers on 6-digit clocks: numbers of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295014

Products of two distinct tribonacci numbers > 1. A274433

Denominators of continued fraction convergents to sqrt(618). A42187

Numbers k such that k!4 + 2⁶ is prime, where k!4 = k!!!! is the quadruple factorial number (A007662). A291347

Number of divisors of 5ⁿ + 1 that are relatively prime to 5^m + 1 for all 0 < m < n. A64132

Strong pseudoprimes to base 17. A20243