31 × 4139

Prime Factor Structure

Factorization String 31 × 4139

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 132,480

Proper Divisor Sum 4,171

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #128291 ← → #128311

1 31 4,139 128,309

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

128,309 384,928 192,464 96,232 48,116 24,058 12,029 36,088 18,044 9,022 4,511 13,534 6,767 20,302 10,151 30,454 15,227 45,682 22,841 68,524 34,262 17,131 51,394 25,697 77,092 38,546 19,273 57,820 28,910 14,455 43,366 21,683 65,050 32,525 97,576 48,788 24,394 12,197 36,592 18,296 9,148 4,574 2,287 6,862 3,431 10,294 5,147 15,442 7,721 23,164 11,582 5,791 17,374 8,687 26,062 13,031 39,094 19,547 58,642 29,321

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