643 × 6361

Prime Factor Structure

Factorization String 643 × 6361

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,097,128

Proper Divisor Sum 7,005

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #4090103 ← → #4090127

1 643 6,361 4,090,123

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

4,090,123 12,270,370 6,135,185 18,405,556 9,202,778 4,601,389 13,804,168 6,902,084 3,451,042 1,725,521 5,176,564 2,588,282 1,294,141 3,882,424 1,941,212 970,606 485,303 1,455,910 727,955 2,183,866 1,091,933 3,275,800 1,637,900 818,950 409,475 1,228,426 614,213 1,842,640 921,320 460,660 230,330 115,165 345,496 172,748 86,374 43,187 129,562 64,781 194,344 97,172 48,586 24,293 72,880 36,440 18,220 9,110 4,555 13,666 6,833 20,500 10,250 5,125 15,376 7,688 3,844 1,922 961 2,884 1,442 721

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