13 × 19 × 1999

Prime Factor Structure

Factorization String 13 × 19 × 1999

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 560,000

Proper Divisor Sum 66,247

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #493747 ← → #493777

1 13 19 247 1,999 25,987 37,981 493,753

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

493,753 1,481,260 740,630 370,315 1,110,946 555,473 1,666,420 833,210 416,605 1,249,816 624,908 312,454 156,227 468,682 234,341 703,024 351,512 175,756 87,878 43,939 131,818 65,909 197,728 98,864 49,432 24,716 12,358 6,179 18,538 9,269 27,808 13,904 6,952 3,476 1,738 869 2,608 1,304 652 326 163 490 245 736 368 184 92 46 23 70 35 106 53 160 80 40 20 10 5 16

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