394,580

2² × 5 × 109 × 181

Prime Factor Structure

Factorization String 2^2 × 5 × 109 × 181

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 840,840

Proper Divisor Sum 446,260

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #394579 ← → #394601

1 2 4 5 10 20 109 181 218 362 436 545 724 905 1,090 1,810 2,180 3,620 19,729 39,458 78,916 98,645 197,290 394,580

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

394,580 197,290 98,645 295,936 147,968 73,984 36,992 18,496 9,248 4,624 2,312 1,156 578 289 868 434 217 652 326 163 490 245 736 368 184 92 46 23 70 35 106 53 160 80 40 20 10 5 16 8 4 2 1

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