3 × 7 × 137 × 761

Prime Factor Structure

Factorization String 3 × 7 × 137 × 761

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,364,992

Proper Divisor Sum 1,175,595

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #2189381 ← → #2189399

1 3 7 21 137 411 761 959 2,283 2,877 5,327 15,981 104,257 312,771 729,799 2,189,397

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

2,189,397 6,568,192 3,284,096 1,642,048 821,024 410,512 205,256 102,628 51,314 25,657 76,972 38,486 19,243 57,730 28,865 86,596 43,298 21,649 64,948 32,474 16,237 48,712 24,356 12,178 6,089 18,268 9,134 4,567 13,702 6,851 20,554 10,277 30,832 15,416 7,708 3,854 1,927 5,782 2,891 8,674 4,337 13,012 6,506 3,253 9,760 4,880 2,440 1,220 610 305 916 458 229 688 344 172 86 43 130 65

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