3 × 5 × 7 × 43 × 137

Prime Factor Structure

Factorization String 3 × 5 × 7 × 43 × 137

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,165,824

Proper Divisor Sum 547,269

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #618547 ← → #618559

1 3 5 7 15 21 35 43 105 129 137 215 301 411 645 685 903 959 1,505 2,055 2,877 4,515 4,795 5,891 14,385 17,673 29,455 41,237 88,365 123,711 206,185 618,555

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

618,555 1,855,666 927,833 2,783,500 1,391,750 695,875 2,087,626 1,043,813 3,131,440 1,565,720 782,860 391,430 195,715 587,146 293,573 880,720 440,360 220,180 110,090 55,045 165,136 82,568 41,284 20,642 10,321 30,964 15,482 7,741 23,224 11,612 5,806 2,903 8,710 4,355 13,066 6,533 19,600 9,800 4,900 2,450 1,225 3,676 1,838 919 2,758 1,379 4,138 2,069 6,208 3,104 1,552 776 388 194 97 292 146 73 220 110

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