643729

Prime Factor Structure

Factorization String 643729

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 643,730

Proper Divisor Sum 1

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #643723 ← → #643751

1 643,729

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

643,729 1,931,188 965,594 482,797 1,448,392 724,196 362,098 181,049 543,148 271,574 135,787 407,362 203,681 611,044 305,522 152,761 458,284 229,142 114,571 343,714 171,857 515,572 257,786 128,893 386,680 193,340 96,670 48,335 145,006 72,503 217,510 108,755 326,266 163,133 489,400 244,700 122,350 61,175 183,526 91,763 275,290 137,645 412,936 206,468 103,234 51,617 154,852 77,426 38,713 116,140 58,070 29,035 87,106 43,553 130,660 65,330 32,665 97,996 48,998 24,499

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