13 × 51691

Prime Factor Structure

Factorization String 13 × 51691

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 723,688

Proper Divisor Sum 51,705

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #671981 ← → #671999

1 13 51,691 671,983

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

671,983 2,015,950 1,007,975 3,023,926 1,511,963 4,535,890 2,267,945 6,803,836 3,401,918 1,700,959 5,102,878 2,551,439 7,654,318 3,827,159 11,481,478 5,740,739 17,222,218 8,611,109 25,833,328 12,916,664 6,458,332 3,229,166 1,614,583 4,843,750 2,421,875 7,265,626 3,632,813 10,898,440 5,449,220 2,724,610 1,362,305 4,086,916 2,043,458 1,021,729 3,065,188 1,532,594 766,297 2,298,892 1,149,446 574,723 1,724,170 862,085 2,586,256 1,293,128 646,564 323,282 161,641 484,924 242,462 121,231 363,694 181,847 545,542 272,771 818,314 409,157 1,227,472 613,736 306,868 153,434

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