3 × 5 × 881 × 1619

Prime Factor Structure

Factorization String 3 × 5 × 881 × 1619

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 34,292,160

Proper Divisor Sum 12,897,075

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #21395063 ← → #21395089

1 3 5 15 881 1,619 2,643 4,405 4,857 8,095 13,215 24,285 1,426,339 4,279,017 7,131,695 21,395,085

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

21,395,085 64,185,256 32,092,628 16,046,314 8,023,157 24,069,472 12,034,736 6,017,368 3,008,684 1,504,342 752,171 2,256,514 1,128,257 3,384,772 1,692,386 846,193 2,538,580 1,269,290 634,645 1,903,936 951,968 475,984 237,992 118,996 59,498 29,749 89,248 44,624 22,312 11,156 5,578 2,789 8,368 4,184 2,092 1,046 523 1,570 785 2,356 1,178 589 1,768 884 442 221 664 332 166 83 250 125 376 188 94 47 142 71 214 107

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