2 × 13 × 41 × 601

Prime Factor Structure

Factorization String 2 × 13 × 41 × 601

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,061,928

Proper Divisor Sum 421,262

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #640663 ← → #640667

1 2 13 26 41 82 533 601 1,066 1,202 7,813 15,626 24,641 49,282 320,333 640,666

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

640,666 320,333 961,000 480,500 240,250 120,125 360,376 180,188 90,094 45,047 135,142 67,571 202,714 101,357 304,072 152,036 76,018 38,009 114,028 57,014 28,507 85,522 42,761 128,284 64,142 32,071 96,214 48,107 144,322 72,161 216,484 108,242 54,121 162,364 81,182 40,591 121,774 60,887 182,662 91,331 273,994 136,997 410,992 205,496 102,748 51,374 25,687 77,062 38,531 115,594 57,797 173,392 86,696 43,348 21,674 10,837 32,512 16,256 8,128 4,064

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