2 × 257 × 421

Prime Factor Structure

Factorization String 2 × 257 × 421

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 326,628

Proper Divisor Sum 110,234

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #216379 ← → #216397

1 2 257 421 514 842 108,197 216,394

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

216,394 108,197 324,592 162,296 81,148 40,574 20,287 60,862 30,431 91,294 45,647 136,942 68,471 205,414 102,707 308,122 154,061 462,184 231,092 115,546 57,773 173,320 86,660 43,330 21,665 64,996 32,498 16,249 48,748 24,374 12,187 36,562 18,281 54,844 27,422 13,711 41,134 20,567 61,702 30,851 92,554 46,277 138,832 69,416 34,708 17,354 8,677 26,032 13,016 6,508 3,254 1,627 4,882 2,441 7,324 3,662 1,831 5,494 2,747 8,242

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