7² × 191 × 421

Prime Factor Structure

Factorization String 7^2 × 191 × 421

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 4,618,368

Proper Divisor Sum 678,229

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #3940127 ← → #3940147

1 7 49 191 421 1,337 2,947 9,359 20,629 80,411 562,877 3,940,139

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

3,940,139 11,820,418 5,910,209 17,730,628 8,865,314 4,432,657 13,297,972 6,648,986 3,324,493 9,973,480 4,986,740 2,493,370 1,246,685 3,740,056 1,870,028 935,014 467,507 1,402,522 701,261 2,103,784 1,051,892 525,946 262,973 788,920 394,460 197,230 98,615 295,846 147,923 443,770 221,885 665,656 332,828 166,414 83,207 249,622 124,811 374,434 187,217 561,652 280,826 140,413 421,240 210,620 105,310 52,655 157,966 78,983 236,950 118,475 355,426 177,713 533,140 266,570 133,285 399,856 199,928 99,964 49,982 24,991

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