3² × 5 × 43 × 71

Prime Factor Structure

Factorization String 3^2 × 5 × 43 × 71

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 247,104

Proper Divisor Sum 109,719

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #137383 ← → #137387

1 3 5 9 15 43 45 71 129 213 215 355 387 639 645 1,065 1,935 3,053 3,195 9,159 15,265 27,477 45,795 137,385

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

137,385 412,156 206,078 103,039 309,118 154,559 463,678 231,839 695,518 347,759 1,043,278 521,639 1,564,918 782,459 2,347,378 1,173,689 3,521,068 1,760,534 880,267 2,640,802 1,320,401 3,961,204 1,980,602 990,301 2,970,904 1,485,452 742,726 371,363 1,114,090 557,045 1,671,136 835,568 417,784 208,892 104,446 52,223 156,670 78,335 235,006 117,503 352,510 176,255 528,766 264,383 793,150 396,575 1,189,726 594,863 1,784,590 892,295 2,676,886 1,338,443 4,015,330 2,007,665 6,022,996 3,011,498 1,505,749 4,517,248 2,258,624 1,129,312

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