5 × 13 × 127 × 2551

Prime Factor Structure

Factorization String 5 × 13 × 127 × 2551

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,439,104

Proper Divisor Sum 6,380,599

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #21058487 ← → #21058523

1 5 13 65 127 635 1,651 2,551 8,255 12,755 33,163 165,815 323,977 1,619,885 4,211,701 21,058,505

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

21,058,505 63,175,516 31,587,758 15,793,879 47,381,638 23,690,819 71,072,458 35,536,229 106,608,688 53,304,344 26,652,172 13,326,086 6,663,043 19,989,130 9,994,565 29,983,696 14,991,848 7,495,924 3,747,962 1,873,981 5,621,944 2,810,972 1,405,486 702,743 2,108,230 1,054,115 3,162,346 1,581,173 4,743,520 2,371,760 1,185,880 592,940 296,470 148,235 444,706 222,353 667,060 333,530 166,765 500,296 250,148 125,074 62,537 187,612 93,806 46,903 140,710 70,355 211,066 105,533 316,600 158,300 79,150 39,575 118,726 59,363 178,090 89,045 267,136 133,568

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