2 × 5 × 13 × 1609

Prime Factor Structure

Factorization String 2 × 5 × 13 × 1609

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 405,720

Proper Divisor Sum 196,550

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #209159 ← → #209173

1 2 5 10 13 26 65 130 1,609 3,218 8,045 16,090 20,917 41,834 104,585 209,170

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

209,170 104,585 313,756 156,878 78,439 235,318 117,659 352,978 176,489 529,468 264,734 132,367 397,102 198,551 595,654 297,827 893,482 446,741 1,340,224 670,112 335,056 167,528 83,764 41,882 20,941 62,824 31,412 15,706 7,853 23,560 11,780 5,890 2,945 8,836 4,418 2,209 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399 4,198 2,099 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443 1,330

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