13 × 31 × 139

Prime Factor Structure

Factorization String 13 × 31 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 62,720

Proper Divisor Sum 6,703

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #56009 ← → #56039

1 13 31 139 403 1,807 4,309 56,017

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

56,017 168,052 84,026 42,013 126,040 63,020 31,510 15,755 47,266 23,633 70,900 35,450 17,725 53,176 26,588 13,294 6,647 19,942 9,971 29,914 14,957 44,872 22,436 11,218 5,609 16,828 8,414 4,207 12,622 6,311 18,934 9,467 28,402 14,201 42,604 21,302 10,651 31,954 15,977 47,932 23,966 11,983 35,950 17,975 53,926 26,963 80,890 40,445 121,336 60,668 30,334 15,167 45,502 22,751 68,254 34,127 102,382 51,191 153,574 76,787

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