3 × 19 × 31 × 991

Prime Factor Structure

Factorization String 3 × 19 × 31 × 991

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,539,520

Proper Divisor Sum 788,423

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1751093 ← → #1751117

1 3 19 31 57 93 589 991 1,767 2,973 18,829 30,721 56,487 92,163 583,699 1,751,097

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

1,751,097 5,253,292 2,626,646 1,313,323 3,939,970 1,969,985 5,909,956 2,954,978 1,477,489 4,432,468 2,216,234 1,108,117 3,324,352 1,662,176 831,088 415,544 207,772 103,886 51,943 155,830 77,915 233,746 116,873 350,620 175,310 87,655 262,966 131,483 394,450 197,225 591,676 295,838 147,919 443,758 221,879 665,638 332,819 998,458 499,229 1,497,688 748,844 374,422 187,211 561,634 280,817 842,452 421,226 210,613 631,840 315,920 157,960 78,980 39,490 19,745 59,236 29,618 14,809 44,428 22,214 11,107

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