19 × 23 × 131

Prime Factor Structure

Factorization String 19 × 23 × 131

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 63,360

Proper Divisor Sum 6,113

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #57241 ← → #57251

1 19 23 131 437 2,489 3,013 57,247

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

57,247 171,742 85,871 257,614 128,807 386,422 193,211 579,634 289,817 869,452 434,726 217,363 652,090 326,045 978,136 489,068 244,534 122,267 366,802 183,401 550,204 275,102 137,551 412,654 206,327 618,982 309,491 928,474 464,237 1,392,712 696,356 348,178 174,089 522,268 261,134 130,567 391,702 195,851 587,554 293,777 881,332 440,666 220,333 661,000 330,500 165,250 82,625 247,876 123,938 61,969 185,908 92,954 46,477 139,432 69,716 34,858 17,429 52,288 26,144 13,072

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