5 × 17 × 31 × 151

Prime Factor Structure

Factorization String 5 × 17 × 31 × 151

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 525,312

Proper Divisor Sum 127,427

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #397867 ← → #397897

1 5 17 31 85 151 155 527 755 2,567 2,635 4,681 12,835 23,405 79,577 397,885

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

397,885 1,193,656 596,828 298,414 149,207 447,622 223,811 671,434 335,717 1,007,152 503,576 251,788 125,894 62,947 188,842 94,421 283,264 141,632 70,816 35,408 17,704 8,852 4,426 2,213 6,640 3,320 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71

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