3 × 5 × 17 × 23 × 89

Prime Factor Structure

Factorization String 3 × 5 × 17 × 23 × 89

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 933,120

Proper Divisor Sum 411,135

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #521981 ← → #521993

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

521,985 1,565,956 782,978 391,489 1,174,468 587,234 293,617 880,852 440,426 220,213 660,640 330,320 165,160 82,580 41,290 20,645 61,936 30,968 15,484 7,742 3,871 11,614 5,807 17,422 8,711 26,134 13,067 39,202 19,601 58,804 29,402 14,701 44,104 22,052 11,026 5,513 16,540 8,270 4,135 12,406 6,203 18,610 9,305 27,916 13,958 6,979 20,938 10,469 31,408 15,704 7,852 3,926 1,963 5,890 2,945 8,836 4,418 2,209 6,628 3,314

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