3 × 5 × 17 × 31

Prime Factor Structure

Factorization String 3 × 5 × 17 × 31

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 13,824

Proper Divisor Sum 5,919

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #7901 ← → #7907

1 3 5 15 17 31 51 85 93 155 255 465 527 1,581 2,635 7,905

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

7,905 23,716 11,858 5,929 17,788 8,894 4,447 13,342 6,671 20,014 10,007 30,022 15,011 45,034 22,517 67,552 33,776 16,888 8,444 4,222 2,111 6,334 3,167 9,502 4,751 14,254 7,127 21,382 10,691 32,074 16,037 48,112 24,056 12,028 6,014 3,007 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

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