3 × 5 × 71 × 1987

Prime Factor Structure

Factorization String 3 × 5 × 71 × 1987

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,435,264

Proper Divisor Sum 1,319,109

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #2116129 ← → #2116183

1 3 5 15 71 213 355 1,065 1,987 5,961 9,935 29,805 141,077 423,231 705,385 2,116,155

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

2,116,155 6,348,466 3,174,233 9,522,700 4,761,350 2,380,675 7,142,026 3,571,013 10,713,040 5,356,520 2,678,260 1,339,130 669,565 2,008,696 1,004,348 502,174 251,087 753,262 376,631 1,129,894 564,947 1,694,842 847,421 2,542,264 1,271,132 635,566 317,783 953,350 476,675 1,430,026 715,013 2,145,040 1,072,520 536,260 268,130 134,065 402,196 201,098 100,549 301,648 150,824 75,412 37,706 18,853 56,560 28,280 14,140 7,070 3,535 10,606 5,303 15,910 7,955 23,866 11,933 35,800 17,900 8,950 4,475 13,426

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