11 × 19 × 661

Prime Factor Structure

Factorization String 11 × 19 × 661

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 158,880

Proper Divisor Sum 20,731

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #138143 ← → #138157

1 11 19 209 661 7,271 12,559 138,149

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

138,149 414,448 207,224 103,612 51,806 25,903 77,710 38,855 116,566 58,283 174,850 87,425 262,276 131,138 65,569 196,708 98,354 49,177 147,532 73,766 36,883 110,650 55,325 165,976 82,988 41,494 20,747 62,242 31,121 93,364 46,682 23,341 70,024 35,012 17,506 8,753 26,260 13,130 6,565 19,696 9,848 4,924 2,462 1,231 3,694 1,847 5,542 2,771 8,314 4,157 12,472 6,236 3,118 1,559 4,678 2,339 7,018 3,509 10,528 5,264

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