3 × 5 × 157 × 857

Prime Factor Structure

Factorization String 3 × 5 × 157 × 857

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,253,536

Proper Divisor Sum 1,235,301

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #2018183 ← → #2018249

1 3 5 15 157 471 785 857 2,355 2,571 4,285 12,855 134,549 403,647 672,745 2,018,235

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

2,018,235 6,054,706 3,027,353 9,082,060 4,541,030 2,270,515 6,811,546 3,405,773 10,217,320 5,108,660 2,554,330 1,277,165 3,831,496 1,915,748 957,874 478,937 1,436,812 718,406 359,203 1,077,610 538,805 1,616,416 808,208 404,104 202,052 101,026 50,513 151,540 75,770 37,885 113,656 56,828 28,414 14,207 42,622 21,311 63,934 31,967 95,902 47,951 143,854 71,927 215,782 107,891 323,674 161,837 485,512 242,756 121,378 60,689 182,068 91,034 45,517 136,552 68,276 34,138 17,069 51,208 25,604 12,802

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