661 × 1321

Prime Factor Structure

Factorization String 661 × 1321

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 875,164

Proper Divisor Sum 1,983

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #873157 ← → #873209

1 661 1,321 873,181

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

873,181 2,619,544 1,309,772 654,886 327,443 982,330 491,165 1,473,496 736,748 368,374 184,187 552,562 276,281 828,844 414,422 207,211 621,634 310,817 932,452 466,226 233,113 699,340 349,670 174,835 524,506 262,253 786,760 393,380 196,690 98,345 295,036 147,518 73,759 221,278 110,639 331,918 165,959 497,878 248,939 746,818 373,409 1,120,228 560,114 280,057 840,172 420,086 210,043 630,130 315,065 945,196 472,598 236,299 708,898 354,449 1,063,348 531,674 265,837 797,512 398,756 199,378

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