7 × 13 × 31 × 1297

Prime Factor Structure

Factorization String 7 × 13 × 31 × 1297

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,652,032

Proper Divisor Sum 993,195

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #3658829 ← → #3658847

1 7 13 31 91 217 403 1,297 2,821 9,079 16,861 40,207 118,027 281,449 522,691 3,658,837

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

3,658,837 10,976,512 5,488,256 2,744,128 1,372,064 686,032 343,016 171,508 85,754 42,877 128,632 64,316 32,158 16,079 48,238 24,119 72,358 36,179 108,538 54,269 162,808 81,404 40,702 20,351 61,054 30,527 91,582 45,791 137,374 68,687 206,062 103,031 309,094 154,547 463,642 231,821 695,464 347,732 173,866 86,933 260,800 130,400 65,200 32,600 16,300 8,150 4,075 12,226 6,113 18,340 9,170 4,585 13,756 6,878 3,439 10,318 5,159 15,478 7,739 23,218

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