2 × 19 × 239 × 1997

Prime Factor Structure

Factorization String 2 × 19 × 239 × 1997

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 28,771,200

Proper Divisor Sum 10,634,446

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #18136753 ← → #18136757

1 2 19 38 239 478 1,997 3,994 4,541 9,082 37,943 75,886 477,283 954,566 9,068,377 18,136,754

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

18,136,754 9,068,377 27,205,132 13,602,566 6,801,283 20,403,850 10,201,925 30,605,776 15,302,888 7,651,444 3,825,722 1,912,861 5,738,584 2,869,292 1,434,646 717,323 2,151,970 1,075,985 3,227,956 1,613,978 806,989 2,420,968 1,210,484 605,242 302,621 907,864 453,932 226,966 113,483 340,450 170,225 510,676 255,338 127,669 383,008 191,504 95,752 47,876 23,938 11,969 35,908 17,954 8,977 26,932 13,466 6,733 20,200 10,100 5,050 2,525 7,576 3,788 1,894 947 2,842 1,421 4,264 2,132 1,066 533

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