521 × 647

Prime Factor Structure

Factorization String 521 × 647

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 338,256

Proper Divisor Sum 1,169

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #337081 ← → #337091

1 521 647 337,087

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

337,087 1,011,262 505,631 1,516,894 758,447 2,275,342 1,137,671 3,413,014 1,706,507 5,119,522 2,559,761 7,679,284 3,839,642 1,919,821 5,759,464 2,879,732 1,439,866 719,933 2,159,800 1,079,900 539,950 269,975 809,926 404,963 1,214,890 607,445 1,822,336 911,168 455,584 227,792 113,896 56,948 28,474 14,237 42,712 21,356 10,678 5,339 16,018 8,009 24,028 12,014 6,007 18,022 9,011 27,034 13,517 40,552 20,276 10,138 5,069 15,208 7,604 3,802 1,901 5,704 2,852 1,426 713 2,140

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