7 × 19891

Prime Factor Structure

Factorization String 7 × 19891

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 159,136

Proper Divisor Sum 19,899

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #139201 ← → #139241

1 7 19,891 139,237

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

139,237 417,712 208,856 104,428 52,214 26,107 78,322 39,161 117,484 58,742 29,371 88,114 44,057 132,172 66,086 33,043 99,130 49,565 148,696 74,348 37,174 18,587 55,762 27,881 83,644 41,822 20,911 62,734 31,367 94,102 47,051 141,154 70,577 211,732 105,866 52,933 158,800 79,400 39,700 19,850 9,925 29,776 14,888 7,444 3,722 1,861 5,584 2,792 1,396 698 349 1,048 524 262 131 394 197 592 296 148

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