3² × 13 × 41 × 137

Prime Factor Structure

Factorization String 3^2 × 13 × 41 × 137

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,054,872

Proper Divisor Sum 397,683

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #657187 ← → #657193

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

657,189 1,971,568 985,784 492,892 246,446 123,223 369,670 184,835 554,506 277,253 831,760 415,880 207,940 103,970 51,985 155,956 77,978 38,989 116,968 58,484 29,242 14,621 43,864 21,932 10,966 5,483 16,450 8,225 24,676 12,338 6,169 18,508 9,254 4,627 13,882 6,941 20,824 10,412 5,206 2,603 7,810 3,905 11,716 5,858 2,929 8,788 4,394 2,197 6,592 3,296 1,648 824 412 206 103 310 155 466 233 700

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