2 × 13 × 31 × 857

Prime Factor Structure

Factorization String 2 × 13 × 31 × 857

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,153,152

Proper Divisor Sum 462,410

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #690721 ← → #690757

1 2 13 26 31 62 403 806 857 1,714 11,141 22,282 26,567 53,134 345,371 690,742

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

690,742 345,371 1,036,114 518,057 1,554,172 777,086 388,543 1,165,630 582,815 1,748,446 874,223 2,622,670 1,311,335 3,934,006 1,967,003 5,901,010 2,950,505 8,851,516 4,425,758 2,212,879 6,638,638 3,319,319 9,957,958 4,978,979 14,936,938 7,468,469 22,405,408 11,202,704 5,601,352 2,800,676 1,400,338 700,169 2,100,508 1,050,254 525,127 1,575,382 787,691 2,363,074 1,181,537 3,544,612 1,772,306 886,153 2,658,460 1,329,230 664,615 1,993,846 996,923 2,990,770 1,495,385 4,486,156 2,243,078 1,121,539 3,364,618 1,682,309 5,046,928 2,523,464 1,261,732 630,866 315,433 946,300

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