3 × 47 × 71 × 1999

Prime Factor Structure

Factorization String 3 × 47 × 71 × 1999

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,648,000

Proper Divisor Sum 7,636,011

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #20011987 ← → #20011993

1 3 47 71 141 213 1,999 3,337 5,997 10,011 93,953 141,929 281,859 425,787 6,670,663 20,011,989

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

20,011,989 60,035,968 30,017,984 15,008,992 7,504,496 3,752,248 1,876,124 938,062 469,031 1,407,094 703,547 2,110,642 1,055,321 3,165,964 1,582,982 791,491 2,374,474 1,187,237 3,561,712 1,780,856 890,428 445,214 222,607 667,822 333,911 1,001,734 500,867 1,502,602 751,301 2,253,904 1,126,952 563,476 281,738 140,869 422,608 211,304 105,652 52,826 26,413 79,240 39,620 19,810 9,905 29,716 14,858 7,429 22,288 11,144 5,572 2,786 1,393 4,180 2,090 1,045 3,136 1,568 784 392 196 98

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