3 × 7 × 137 × 157

Prime Factor Structure

Factorization String 3 × 7 × 137 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 697,728

Proper Divisor Sum 246,039

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #451681 ← → #451691

1 3 7 21 137 157 411 471 959 1,099 2,877 3,297 21,509 64,527 150,563 451,689

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

451,689 1,355,068 677,534 338,767 1,016,302 508,151 1,524,454 762,227 2,286,682 1,143,341 3,430,024 1,715,012 857,506 428,753 1,286,260 643,130 321,565 964,696 482,348 241,174 120,587 361,762 180,881 542,644 271,322 135,661 406,984 203,492 101,746 50,873 152,620 76,310 38,155 114,466 57,233 171,700 85,850 42,925 128,776 64,388 32,194 16,097 48,292 24,146 12,073 36,220 18,110 9,055 27,166 13,583 40,750 20,375 61,126 30,563 91,690 45,845 137,536 68,768 34,384 17,192

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