991 × 4007

Prime Factor Structure

Factorization String 991 × 4007

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,975,936

Proper Divisor Sum 4,999

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #3970903 ← → #3970949

1 991 4,007 3,970,937

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

3,970,937 11,912,812 5,956,406 2,978,203 8,934,610 4,467,305 13,401,916 6,700,958 3,350,479 10,051,438 5,025,719 15,077,158 7,538,579 22,615,738 11,307,869 33,923,608 16,961,804 8,480,902 4,240,451 12,721,354 6,360,677 19,082,032 9,541,016 4,770,508 2,385,254 1,192,627 3,577,882 1,788,941 5,366,824 2,683,412 1,341,706 670,853 2,012,560 1,006,280 503,140 251,570 125,785 377,356 188,678 94,339 283,018 141,509 424,528 212,264 106,132 53,066 26,533 79,600 39,800 19,900 9,950 4,975 14,926 7,463 22,390 11,195 33,586 16,793 50,380 25,190

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