3 × 7 × 47 × 21647

Prime Factor Structure

Factorization String 3 × 7 × 47 × 21647

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 33,251,328

Proper Divisor Sum 11,885,739

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #21365579 ← → #21365593

1 3 7 21 47 141 329 987 21,647 64,941 151,529 454,587 1,017,409 3,052,227 7,121,863 21,365,589

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

21,365,589 64,096,768 32,048,384 16,024,192 8,012,096 4,006,048 2,003,024 1,001,512 500,756 250,378 125,189 375,568 187,784 93,892 46,946 23,473 70,420 35,210 17,605 52,816 26,408 13,204 6,602 3,301 9,904 4,952 2,476 1,238 619 1,858 929 2,788 1,394 697 2,092 1,046 523 1,570 785 2,356 1,178 589 1,768 884 442 221 664 332 166 83 250 125 376 188 94 47 142 71 214 107

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