3 × 7 × 61 × 15739

Prime Factor Structure

Factorization String 3 × 7 × 61 × 15739

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 31,228,160

Proper Divisor Sum 11,066,501

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #20161649 ← → #20161667

1 3 7 21 61 183 427 1,281 15,739 47,217 110,173 330,519 960,079 2,880,237 6,720,553 20,161,659

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

20,161,659 60,484,978 30,242,489 90,727,468 45,363,734 22,681,867 68,045,602 34,022,801 102,068,404 51,034,202 25,517,101 76,551,304 38,275,652 19,137,826 9,568,913 28,706,740 14,353,370 7,176,685 21,530,056 10,765,028 5,382,514 2,691,257 8,073,772 4,036,886 2,018,443 6,055,330 3,027,665 9,082,996 4,541,498 2,270,749 6,812,248 3,406,124 1,703,062 851,531 2,554,594 1,277,297 3,831,892 1,915,946 957,973 2,873,920 1,436,960 718,480 359,240 179,620 89,810 44,905 134,716 67,358 33,679 101,038 50,519 151,558 75,779 227,338 113,669 341,008 170,504 85,252 42,626 21,313

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