7 × 13 × 219809

Prime Factor Structure

Factorization String 7 × 13 × 219809

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 24,618,720

Proper Divisor Sum 4,616,101

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #20002613 ← → #20002639

1 7 13 91 219,809 1,538,663 2,857,517 20,002,619

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

20,002,619 60,007,858 30,003,929 90,011,788 45,005,894 22,502,947 67,508,842 33,754,421 101,263,264 50,631,632 25,315,816 12,657,908 6,328,954 3,164,477 9,493,432 4,746,716 2,373,358 1,186,679 3,560,038 1,780,019 5,340,058 2,670,029 8,010,088 4,005,044 2,002,522 1,001,261 3,003,784 1,501,892 750,946 375,473 1,126,420 563,210 281,605 844,816 422,408 211,204 105,602 52,801 158,404 79,202 39,601 118,804 59,402 29,701 89,104 44,552 22,276 11,138 5,569 16,708 8,354 4,177 12,532 6,266 3,133 9,400 4,700 2,350 1,175 3,526

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