2² × 161639

Prime Factor Structure

Factorization String 2^2 × 161639

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,131,480

Proper Divisor Sum 484,924

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #646549 ← → #646571

1 2 4 161,639 323,278 646,556

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

646,556 323,278 161,639 484,918 242,459 727,378 363,689 1,091,068 545,534 272,767 818,302 409,151 1,227,454 613,727 1,841,182 920,591 2,761,774 1,380,887 4,142,662 2,071,331 6,213,994 3,106,997 9,320,992 4,660,496 2,330,248 1,165,124 582,562 291,281 873,844 436,922 218,461 655,384 327,692 163,846 81,923 245,770 122,885 368,656 184,328 92,164 46,082 23,041 69,124 34,562 17,281 51,844 25,922 12,961 38,884 19,442 9,721 29,164 14,582 7,291 21,874 10,937 32,812 16,406 8,203 24,610

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