13 × 37 × 71 × 139

Prime Factor Structure

Factorization String 13 × 37 × 71 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,362,560

Proper Divisor Sum 615,571

Digit Sum / Digital Root 47 (Root: 2)

Adjacent Primes #4746983 ← → #4746997

1 13 37 71 139 481 923 1,807 2,627 5,143 9,869 34,151 66,859 128,297 365,153 4,746,989

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

4,746,989 14,240,968 7,120,484 3,560,242 1,780,121 5,340,364 2,670,182 1,335,091 4,005,274 2,002,637 6,007,912 3,003,956 1,501,978 750,989 2,252,968 1,126,484 563,242 281,621 844,864 422,432 211,216 105,608 52,804 26,402 13,201 39,604 19,802 9,901 29,704 14,852 7,426 3,713 11,140 5,570 2,785 8,356 4,178 2,089 6,268 3,134 1,567 4,702 2,351 7,054 3,527 10,582 5,291 15,874 7,937 23,812 11,906 5,953 17,860 8,930 4,465 13,396 6,698 3,349 10,048 5,024

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