3 × 7 × 1213

Prime Factor Structure

Factorization String 3 × 7 × 1213

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 38,848

Proper Divisor Sum 13,375

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #25471 ← → #25523

1 3 7 21 1,213 3,639 8,491 25,473

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

25,473 76,420 38,210 19,105 57,316 28,658 14,329 42,988 21,494 10,747 32,242 16,121 48,364 24,182 12,091 36,274 18,137 54,412 27,206 13,603 40,810 20,405 61,216 30,608 15,304 7,652 3,826 1,913 5,740 2,870 1,435 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090 2,045 6,136 3,068 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831

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