2 × 257921

Prime Factor Structure

Factorization String 2 × 257921

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 773,766

Proper Divisor Sum 257,924

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #515839 ← → #515843

1 2 257,921 515,842

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

515,842 257,921 773,764 386,882 193,441 580,324 290,162 145,081 435,244 217,622 108,811 326,434 163,217 489,652 244,826 122,413 367,240 183,620 91,810 45,905 137,716 68,858 34,429 103,288 51,644 25,822 12,911 38,734 19,367 58,102 29,051 87,154 43,577 130,732 65,366 32,683 98,050 49,025 147,076 73,538 36,769 110,308 55,154 27,577 82,732 41,366 20,683 62,050 31,025 93,076 46,538 23,269 69,808 34,904 17,452 8,726 4,363 13,090 6,545 19,636

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