3 × 7 × 13 × 1297

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1297

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 581,504

Proper Divisor Sum 227,423

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #354073 ← → #354091

1 3 7 13 21 39 91 273 1,297 3,891 9,079 16,861 27,237 50,583 118,027 354,081

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

354,081 1,062,244 531,122 265,561 796,684 398,342 199,171 597,514 298,757 896,272 448,136 224,068 112,034 56,017 168,052 84,026 42,013 126,040 63,020 31,510 15,755 47,266 23,633 70,900 35,450 17,725 53,176 26,588 13,294 6,647 19,942 9,971 29,914 14,957 44,872 22,436 11,218 5,609 16,828 8,414 4,207 12,622 6,311 18,934 9,467 28,402 14,201 42,604 21,302 10,651 31,954 15,977 47,932 23,966 11,983 35,950 17,975 53,926 26,963 80,890

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