7² × 617 × 661

Prime Factor Structure

Factorization String 7^2 × 617 × 661

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 23,319,612

Proper Divisor Sum 3,335,599

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #19984001 ← → #19984031

1 7 49 617 661 4,319 4,627 30,233 32,389 407,837 2,854,859 19,984,013

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

19,984,013 59,952,040 29,976,020 14,988,010 7,494,005 22,482,016 11,241,008 5,620,504 2,810,252 1,405,126 702,563 2,107,690 1,053,845 3,161,536 1,580,768 790,384 395,192 197,596 98,798 49,399 148,198 74,099 222,298 111,149 333,448 166,724 83,362 41,681 125,044 62,522 31,261 93,784 46,892 23,446 11,723 35,170 17,585 52,756 26,378 13,189 39,568 19,784 9,892 4,946 2,473 7,420 3,710 1,855 5,566 2,783 8,350 4,175 12,526 6,263 18,790 9,395 28,186 14,093 42,280 21,140

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