2² × 5 × 18289

Prime Factor Structure

Factorization String 2^2 × 5 × 18289

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 768,180

Proper Divisor Sum 402,400

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #365779 ← → #365791

1 2 4 5 10 20 18,289 36,578 73,156 91,445 182,890 365,780

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

365,780 182,890 91,445 274,336 137,168 68,584 34,292 17,146 8,573 25,720 12,860 6,430 3,215 9,646 4,823 14,470 7,235 21,706 10,853 32,560 16,280 8,140 4,070 2,035 6,106 3,053 9,160 4,580 2,290 1,145 3,436 1,718 859 2,578 1,289 3,868 1,934 967 2,902 1,451 4,354 2,177 6,532 3,266 1,633 4,900 2,450 1,225 3,676 1,838 919 2,758 1,379 4,138 2,069 6,208 3,104 1,552 776 388

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