2 × 260137

Prime Factor Structure

Factorization String 2 × 260137

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 780,414

Proper Divisor Sum 260,140

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #520241 ← → #520279

1 2 260,137 520,274

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

520,274 260,137 780,412 390,206 195,103 585,310 292,655 877,966 438,983 1,316,950 658,475 1,975,426 987,713 2,963,140 1,481,570 740,785 2,222,356 1,111,178 555,589 1,666,768 833,384 416,692 208,346 104,173 312,520 156,260 78,130 39,065 117,196 58,598 29,299 87,898 43,949 131,848 65,924 32,962 16,481 49,444 24,722 12,361 37,084 18,542 9,271 27,814 13,907 41,722 20,861 62,584 31,292 15,646 7,823 23,470 11,735 35,206 17,603 52,810 26,405 79,216 39,608 19,804

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.