3 × 7 × 191 × 419

Prime Factor Structure

Factorization String 3 × 7 × 191 × 419

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,580,480

Proper Divisor Sum 899,871

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1680593 ← → #1680617

1 3 7 21 191 419 573 1,257 1,337 2,933 4,011 8,799 80,029 240,087 560,203 1,680,609

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

1,680,609 5,041,828 2,520,914 1,260,457 3,781,372 1,890,686 945,343 2,836,030 1,418,015 4,254,046 2,127,023 6,381,070 3,190,535 9,571,606 4,785,803 14,357,410 7,178,705 21,536,116 10,768,058 5,384,029 16,152,088 8,076,044 4,038,022 2,019,011 6,057,034 3,028,517 9,085,552 4,542,776 2,271,388 1,135,694 567,847 1,703,542 851,771 2,555,314 1,277,657 3,832,972 1,916,486 958,243 2,874,730 1,437,365 4,312,096 2,156,048 1,078,024 539,012 269,506 134,753 404,260 202,130 101,065 303,196 151,598 75,799 227,398 113,699 341,098 170,549 511,648 255,824 127,912 63,956

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