661 × 997

Prime Factor Structure

Factorization String 661 × 997

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 660,676

Proper Divisor Sum 1,659

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #659011 ← → #659023

1 661 997 659,017

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

659,017 1,977,052 988,526 494,263 1,482,790 741,395 2,224,186 1,112,093 3,336,280 1,668,140 834,070 417,035 1,251,106 625,553 1,876,660 938,330 469,165 1,407,496 703,748 351,874 175,937 527,812 263,906 131,953 395,860 197,930 98,965 296,896 148,448 74,224 37,112 18,556 9,278 4,639 13,918 6,959 20,878 10,439 31,318 15,659 46,978 23,489 70,468 35,234 17,617 52,852 26,426 13,213 39,640 19,820 9,910 4,955 14,866 7,433 22,300 11,150 5,575 16,726 8,363 25,090

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