2² × 3³ × 5 × 1187

Prime Factor Structure

Factorization String 2^2 × 3^3 × 5 × 1187

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,995,840

Proper Divisor Sum 1,354,860

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #640973 ← → #640993

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

640,980 320,490 160,245 480,736 240,368 120,184 60,092 30,046 15,023 45,070 22,535 67,606 33,803 101,410 50,705 152,116 76,058 38,029 114,088 57,044 28,522 14,261 42,784 21,392 10,696 5,348 2,674 1,337 4,012 2,006 1,003 3,010 1,505 4,516 2,258 1,129 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682

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