3 × 7 × 21391

Prime Factor Structure

Factorization String 3 × 7 × 21391

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 684,544

Proper Divisor Sum 235,333

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #449209 ← → #449227

1 3 7 21 21,391 64,173 149,737 449,211

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

449,211 1,347,634 673,817 2,021,452 1,010,726 505,363 1,516,090 758,045 2,274,136 1,137,068 568,534 284,267 852,802 426,401 1,279,204 639,602 319,801 959,404 479,702 239,851 719,554 359,777 1,079,332 539,666 269,833 809,500 404,750 202,375 607,126 303,563 910,690 455,345 1,366,036 683,018 341,509 1,024,528 512,264 256,132 128,066 64,033 192,100 96,050 48,025 144,076 72,038 36,019 108,058 54,029 162,088 81,044 40,522 20,261 60,784 30,392 15,196 7,598 3,799 11,398 5,699 17,098

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