3 × 7 × 137 × 431

Prime Factor Structure

Factorization String 3 × 7 × 137 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,907,712

Proper Divisor Sum 667,725

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #1239983 ← → #1239989

1 3 7 21 137 411 431 959 1,293 2,877 3,017 9,051 59,047 177,141 413,329 1,239,987

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

1,239,987 3,719,962 1,859,981 5,579,944 2,789,972 1,394,986 697,493 2,092,480 1,046,240 523,120 261,560 130,780 65,390 32,695 98,086 49,043 147,130 73,565 220,696 110,348 55,174 27,587 82,762 41,381 124,144 62,072 31,036 15,518 7,759 23,278 11,639 34,918 17,459 52,378 26,189 78,568 39,284 19,642 9,821 29,464 14,732 7,366 3,683 11,050 5,525 16,576 8,288 4,144 2,072 1,036 518 259 778 389 1,168 584 292 146 73 220

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