7² × 19 × 1621

Prime Factor Structure

Factorization String 7^2 × 19 × 1621

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,849,080

Proper Divisor Sum 339,929

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #1509143 ← → #1509163

1 7 19 49 133 931 1,621 11,347 30,799 79,429 215,593 1,509,151

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

1,509,151 4,527,454 2,263,727 6,791,182 3,395,591 10,186,774 5,093,387 15,280,162 7,640,081 22,920,244 11,460,122 5,730,061 17,190,184 8,595,092 4,297,546 2,148,773 6,446,320 3,223,160 1,611,580 805,790 402,895 1,208,686 604,343 1,813,030 906,515 2,719,546 1,359,773 4,079,320 2,039,660 1,019,830 509,915 1,529,746 764,873 2,294,620 1,147,310 573,655 1,720,966 860,483 2,581,450 1,290,725 3,872,176 1,936,088 968,044 484,022 242,011 726,034 363,017 1,089,052 544,526 272,263 816,790 408,395 1,225,186 612,593 1,837,780 918,890 459,445 1,378,336 689,168 344,584

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