2 × 3 × 7 × 17 × 23 × 1303

Prime Factor Structure

Factorization String 2 × 3 × 7 × 17 × 23 × 1303

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 54,079,488

Proper Divisor Sum 32,681,622

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #21397847 ← → #21397867

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

21,397,866 10,698,933 32,096,800 16,048,400 8,024,200 4,012,100 2,006,050 1,003,025 3,009,076 1,504,538 752,269 2,256,808 1,128,404 564,202 282,101 846,304 423,152 211,576 105,788 52,894 26,447 79,342 39,671 119,014 59,507 178,522 89,261 267,784 133,892 66,946 33,473 100,420 50,210 25,105 75,316 37,658 18,829 56,488 28,244 14,122 7,061 21,184 10,592 5,296 2,648 1,324 662 331 994 497 1,492 746 373 1,120 560 280 140 70 35 106

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