13 × 17 × 197 × 419

Prime Factor Structure

Factorization String 13 × 17 × 197 × 419

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 20,956,320

Proper Divisor Sum 2,714,317

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #18241997 ← → #18242009

1 13 17 197 221 419 2,561 3,349 5,447 7,123 43,537 82,543 92,599 1,073,059 1,403,231 18,242,003

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

18,242,003 54,726,010 27,363,005 82,089,016 41,044,508 20,522,254 10,261,127 30,783,382 15,391,691 46,175,074 23,087,537 69,262,612 34,631,306 17,315,653 51,946,960 25,973,480 12,986,740 6,493,370 3,246,685 9,740,056 4,870,028 2,435,014 1,217,507 3,652,522 1,826,261 5,478,784 2,739,392 1,369,696 684,848 342,424 171,212 85,606 42,803 128,410 64,205 192,616 96,308 48,154 24,077 72,232 36,116 18,058 9,029 27,088 13,544 6,772 3,386 1,693 5,080 2,540 1,270 635 1,906 953 2,860 1,430 715 2,146 1,073 3,220

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