2 × 13 × 31 × 20641

Prime Factor Structure

Factorization String 2 × 13 × 31 × 20641

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,742,848

Proper Divisor Sum 11,106,202

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #16636639 ← → #16636667

1 2 13 26 31 62 403 806 20,641 41,282 268,333 536,666 639,871 1,279,742 8,318,323 16,636,646

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

16,636,646 8,318,323 24,954,970 12,477,485 37,432,456 18,716,228 9,358,114 4,679,057 14,037,172 7,018,586 3,509,293 10,527,880 5,263,940 2,631,970 1,315,985 3,947,956 1,973,978 986,989 2,960,968 1,480,484 740,242 370,121 1,110,364 555,182 277,591 832,774 416,387 1,249,162 624,581 1,873,744 936,872 468,436 234,218 117,109 351,328 175,664 87,832 43,916 21,958 10,979 32,938 16,469 49,408 24,704 12,352 6,176 3,088 1,544 772 386 193 580 290 145 436 218 109 328 164 82

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