5 × 13 × 31 × 991

Prime Factor Structure

Factorization String 5 × 13 × 31 × 991

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,666,496

Proper Divisor Sum 669,631

Digit Sum / Digital Root 44 (Root: 8)

Adjacent Primes #1996859 ← → #1996867

1 5 13 31 65 155 403 991 2,015 4,955 12,883 30,721 64,415 153,605 399,373 1,996,865

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

1,996,865 5,990,596 2,995,298 1,497,649 4,492,948 2,246,474 1,123,237 3,369,712 1,684,856 842,428 421,214 210,607 631,822 315,911 947,734 473,867 1,421,602 710,801 2,132,404 1,066,202 533,101 1,599,304 799,652 399,826 199,913 599,740 299,870 149,935 449,806 224,903 674,710 337,355 1,012,066 506,033 1,518,100 759,050 379,525 1,138,576 569,288 284,644 142,322 71,161 213,484 106,742 53,371 160,114 80,057 240,172 120,086 60,043 180,130 90,065 270,196 135,098 67,549 202,648 101,324 50,662 25,331 75,994

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