3 × 7 × 13 × 1429

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1429

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 640,640

Proper Divisor Sum 250,523

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #390113 ← → #390119

1 3 7 13 21 39 91 273 1,429 4,287 10,003 18,577 30,009 55,731 130,039 390,117

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

390,117 1,170,352 585,176 292,588 146,294 73,147 219,442 109,721 329,164 164,582 82,291 246,874 123,437 370,312 185,156 92,578 46,289 138,868 69,434 34,717 104,152 52,076 26,038 13,019 39,058 19,529 58,588 29,294 14,647 43,942 21,971 65,914 32,957 98,872 49,436 24,718 12,359 37,078 18,539 55,618 27,809 83,428 41,714 20,857 62,572 31,286 15,643 46,930 23,465 70,396 35,198 17,599 52,798 26,399 79,198 39,599 118,798 59,399 178,198 89,099

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