640993

Prime Factor Structure

Factorization String 640993

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 640,994

Proper Divisor Sum 1

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #640973 ← → #641051

1 640,993

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

640,993 1,922,980 961,490 480,745 1,442,236 721,118 360,559 1,081,678 540,839 1,622,518 811,259 2,433,778 1,216,889 3,650,668 1,825,334 912,667 2,738,002 1,369,001 4,107,004 2,053,502 1,026,751 3,080,254 1,540,127 4,620,382 2,310,191 6,930,574 3,465,287 10,395,862 5,197,931 15,593,794 7,796,897 23,390,692 11,695,346 5,847,673 17,543,020 8,771,510 4,385,755 13,157,266 6,578,633 19,735,900 9,867,950 4,933,975 14,801,926 7,400,963 22,202,890 11,101,445 33,304,336 16,652,168 8,326,084 4,163,042 2,081,521 6,244,564 3,122,282 1,561,141 4,683,424 2,341,712 1,170,856 585,428 292,714 146,357

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