2³ × 5 × 7 × 19 × 4021

Prime Factor Structure

Factorization String 2^3 × 5 × 7 × 19 × 4021

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 57,916,800

Proper Divisor Sum 36,525,080

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21391703 ← → #21391723

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

21,391,720 10,695,860 5,347,930 2,673,965 8,021,896 4,010,948 2,005,474 1,002,737 3,008,212 1,504,106 752,053 2,256,160 1,128,080 564,040 282,020 141,010 70,505 211,516 105,758 52,879 158,638 79,319 237,958 118,979 356,938 178,469 535,408 267,704 133,852 66,926 33,463 100,390 50,195 150,586 75,293 225,880 112,940 56,470 28,235 84,706 42,353 127,060 63,530 31,765 95,296 47,648 23,824 11,912 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629

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