3² × 71147

Prime Factor Structure

Factorization String 3^2 × 71147

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 924,924

Proper Divisor Sum 284,601

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640307 ← → #640333

1 3 9 71,147 213,441 640,323

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

640,323 1,920,970 960,485 2,881,456 1,440,728 720,364 360,182 180,091 540,274 270,137 810,412 405,206 202,603 607,810 303,905 911,716 455,858 227,929 683,788 341,894 170,947 512,842 256,421 769,264 384,632 192,316 96,158 48,079 144,238 72,119 216,358 108,179 324,538 162,269 486,808 243,404 121,702 60,851 182,554 91,277 273,832 136,916 68,458 34,229 102,688 51,344 25,672 12,836 6,418 3,209 9,628 4,814 2,407 7,222 3,611 10,834 5,417 16,252 8,126 4,063

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