31 × 631

Prime Factor Structure

Factorization String 31 × 631

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 20,224

Proper Divisor Sum 663

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #19559 ← → #19571

1 31 631 19,561

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

19,561 58,684 29,342 14,671 44,014 22,007 66,022 33,011 99,034 49,517 148,552 74,276 37,138 18,569 55,708 27,854 13,927 41,782 20,891 62,674 31,337 94,012 47,006 23,503 70,510 35,255 105,766 52,883 158,650 79,325 237,976 118,988 59,494 29,747 89,242 44,621 133,864 66,932 33,466 16,733 50,200 25,100 12,550 6,275 18,826 9,413 28,240 14,120 7,060 3,530 1,765 5,296 2,648 1,324 662 331 994 497 1,492 746

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