2² × 5 × 421

Prime Factor Structure

Factorization String 2^2 × 5 × 421

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 17,724

Proper Divisor Sum 9,304

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #8419 ← → #8423

1 2 4 5 10 20 421 842 1,684 2,105 4,210 8,420

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

8,420 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334

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