3² × 11 × 29 × 223

Prime Factor Structure

Factorization String 3^2 × 11 × 29 × 223

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,048,320

Proper Divisor Sum 408,087

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640231 ← → #640247

1 3 9 11 29 33 87 99 223 261 319 669 957 2,007 2,453 2,871 6,467 7,359 19,401 22,077 58,203 71,137 213,411 640,233

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

640,233 1,920,700 960,350 480,175 1,440,526 720,263 2,160,790 1,080,395 3,241,186 1,620,593 4,861,780 2,430,890 1,215,445 3,646,336 1,823,168 911,584 455,792 227,896 113,948 56,974 28,487 85,462 42,731 128,194 64,097 192,292 96,146 48,073 144,220 72,110 36,055 108,166 54,083 162,250 81,125 243,376 121,688 60,844 30,422 15,211 45,634 22,817 68,452 34,226 17,113 51,340 25,670 12,835 38,506 19,253 57,760 28,880 14,440 7,220 3,610 1,805 5,416 2,708 1,354 677

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