3 × 7 × 13 × 1997

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1997

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 895,104

Proper Divisor Sum 349,923

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #545161 ← → #545189

1 3 7 13 21 39 91 273 1,997 5,991 13,979 25,961 41,937 77,883 181,727 545,181

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

545,181 1,635,544 817,772 408,886 204,443 613,330 306,665 919,996 459,998 229,999 689,998 344,999 1,034,998 517,499 1,552,498 776,249 2,328,748 1,164,374 582,187 1,746,562 873,281 2,619,844 1,309,922 654,961 1,964,884 982,442 491,221 1,473,664 736,832 368,416 184,208 92,104 46,052 23,026 11,513 34,540 17,270 8,635 25,906 12,953 38,860 19,430 9,715 29,146 14,573 43,720 21,860 10,930 5,465 16,396 8,198 4,099 12,298 6,149 18,448 9,224 4,612 2,306 1,153 3,460

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