661 × 787

Prime Factor Structure

Factorization String 661 × 787

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 521,656

Proper Divisor Sum 1,449

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #520193 ← → #520213

1 661 787 520,207

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

520,207 1,560,622 780,311 2,340,934 1,170,467 3,511,402 1,755,701 5,267,104 2,633,552 1,316,776 658,388 329,194 164,597 493,792 246,896 123,448 61,724 30,862 15,431 46,294 23,147 69,442 34,721 104,164 52,082 26,041 78,124 39,062 19,531 58,594 29,297 87,892 43,946 21,973 65,920 32,960 16,480 8,240 4,120 2,060 1,030 515 1,546 773 2,320 1,160 580 290 145 436 218 109 328 164 82 41 124 62 31 94

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