31 × 21673

Prime Factor Structure

Factorization String 31 × 21673

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 693,568

Proper Divisor Sum 21,705

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #671851 ← → #671887

1 31 21,673 671,863

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

671,863 2,015,590 1,007,795 3,023,386 1,511,693 4,535,080 2,267,540 1,133,770 566,885 1,700,656 850,328 425,164 212,582 106,291 318,874 159,437 478,312 239,156 119,578 59,789 179,368 89,684 44,842 22,421 67,264 33,632 16,816 8,408 4,204 2,102 1,051 3,154 1,577 4,732 2,366 1,183 3,550 1,775 5,326 2,663 7,990 3,995 11,986 5,993 17,980 8,990 4,495 13,486 6,743 20,230 10,115 30,346 15,173 45,520 22,760 11,380 5,690 2,845 8,536 4,268

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