7 × 11 × 19 × 421

Prime Factor Structure

Factorization String 7 × 11 × 19 × 421

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 810,240

Proper Divisor Sum 194,317

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #615919 ← → #615941

1 7 11 19 77 133 209 421 1,463 2,947 4,631 7,999 32,417 55,993 87,989 615,923

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

615,923 1,847,770 923,885 2,771,656 1,385,828 692,914 346,457 1,039,372 519,686 259,843 779,530 389,765 1,169,296 584,648 292,324 146,162 73,081 219,244 109,622 54,811 164,434 82,217 246,652 123,326 61,663 184,990 92,495 277,486 138,743 416,230 208,115 624,346 312,173 936,520 468,260 234,130 117,065 351,196 175,598 87,799 263,398 131,699 395,098 197,549 592,648 296,324 148,162 74,081 222,244 111,122 55,561 166,684 83,342 41,671 125,014 62,507 187,522 93,761 281,284 140,642

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