3 × 5 × 7 × 20357

Prime Factor Structure

Factorization String 3 × 5 × 7 × 20357

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,908,736

Proper Divisor Sum 1,771,251

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #2137483 ← → #2137489

1 3 5 7 15 21 35 105 20,357 61,071 101,785 142,499 305,355 427,497 712,495 2,137,485

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

2,137,485 6,412,456 3,206,228 1,603,114 801,557 2,404,672 1,202,336 601,168 300,584 150,292 75,146 37,573 112,720 56,360 28,180 14,090 7,045 21,136 10,568 5,284 2,642 1,321 3,964 1,982 991 2,974 1,487 4,462 2,231 6,694 3,347 10,042 5,021 15,064 7,532 3,766 1,883 5,650 2,825 8,476 4,238 2,119 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058 4,529 13,588

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