3 × 7 × 647 × 1471

Prime Factor Structure

Factorization String 3 × 7 × 647 × 1471

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 30,523,392

Proper Divisor Sum 10,536,915

Digit Sum / Digital Root 51 (Root: 6)

Adjacent Primes #19986469 ← → #19986493

1 3 7 21 647 1,471 1,941 4,413 4,529 10,297 13,587 30,891 951,737 2,855,211 6,662,159 19,986,477

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

19,986,477 59,959,432 29,979,716 14,989,858 7,494,929 22,484,788 11,242,394 5,621,197 16,863,592 8,431,796 4,215,898 2,107,949 6,323,848 3,161,924 1,580,962 790,481 2,371,444 1,185,722 592,861 1,778,584 889,292 444,646 222,323 666,970 333,485 1,000,456 500,228 250,114 125,057 375,172 187,586 93,793 281,380 140,690 70,345 211,036 105,518 52,759 158,278 79,139 237,418 118,709 356,128 178,064 89,032 44,516 22,258 11,129 33,388 16,694 8,347 25,042 12,521 37,564 18,782 9,391 28,174 14,087 42,262 21,131

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