3 × 13 × 53 × 1997

Prime Factor Structure

Factorization String 3 × 13 × 53 × 1997

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 6,041,952

Proper Divisor Sum 1,914,153

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #4127797 ← → #4127801

1 3 13 39 53 159 689 1,997 2,067 5,991 25,961 77,883 105,841 317,523 1,375,933 4,127,799

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

4,127,799 12,383,398 6,191,699 18,575,098 9,287,549 27,862,648 13,931,324 6,965,662 3,482,831 10,448,494 5,224,247 15,672,742 7,836,371 23,509,114 11,754,557 35,263,672 17,631,836 8,815,918 4,407,959 13,223,878 6,611,939 19,835,818 9,917,909 29,753,728 14,876,864 7,438,432 3,719,216 1,859,608 929,804 464,902 232,451 697,354 348,677 1,046,032 523,016 261,508 130,754 65,377 196,132 98,066 49,033 147,100 73,550 36,775 110,326 55,163 165,490 82,745 248,236 124,118 62,059 186,178 93,089 279,268 139,634 69,817 209,452 104,726 52,363 157,090

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