7 × 13 × 17 × 1223

Prime Factor Structure

Factorization String 7 × 13 × 17 × 1223

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,467,584

Proper Divisor Sum 575,603

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #1891969 ← → #1891987

1 7 13 17 91 119 221 1,223 1,547 8,561 15,899 20,791 111,293 145,537 270,283 1,891,981

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

1,891,981 5,675,944 2,837,972 1,418,986 709,493 2,128,480 1,064,240 532,120 266,060 133,030 66,515 199,546 99,773 299,320 149,660 74,830 37,415 112,246 56,123 168,370 84,185 252,556 126,278 63,139 189,418 94,709 284,128 142,064 71,032 35,516 17,758 8,879 26,638 13,319 39,958 19,979 59,938 29,969 89,908 44,954 22,477 67,432 33,716 16,858 8,429 25,288 12,644 6,322 3,161 9,484 4,742 2,371 7,114 3,557 10,672 5,336 2,668 1,334 667 2,002

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