137 × 139 × 157

Prime Factor Structure

Factorization String 137 × 139 × 157

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,052,560

Proper Divisor Sum 62,809

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #2989691 ← → #2989757

1 137 139 157 19,043 21,509 21,823 2,989,751

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

2,989,751 8,969,254 4,484,627 13,453,882 6,726,941 20,180,824 10,090,412 5,045,206 2,522,603 7,567,810 3,783,905 11,351,716 5,675,858 2,837,929 8,513,788 4,256,894 2,128,447 6,385,342 3,192,671 9,578,014 4,789,007 14,367,022 7,183,511 21,550,534 10,775,267 32,325,802 16,162,901 48,488,704 24,244,352 12,122,176 6,061,088 3,030,544 1,515,272 757,636 378,818 189,409 568,228 284,114 142,057 426,172 213,086 106,543 319,630 159,815 479,446 239,723 719,170 359,585 1,078,756 539,378 269,689 809,068 404,534 202,267 606,802 303,401 910,204 455,102 227,551 682,654

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