3 × 7 × 31 × 983

Prime Factor Structure

Factorization String 3 × 7 × 31 × 983

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,007,616

Proper Divisor Sum 367,683

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #639911 ← → #639937

1 3 7 21 31 93 217 651 983 2,949 6,881 20,643 30,473 91,419 213,311 639,933

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

639,933 1,919,800 959,900 479,950 239,975 719,926 359,963 1,079,890 539,945 1,619,836 809,918 404,959 1,214,878 607,439 1,822,318 911,159 2,733,478 1,366,739 4,100,218 2,050,109 6,150,328 3,075,164 1,537,582 768,791 2,306,374 1,153,187 3,459,562 1,729,781 5,189,344 2,594,672 1,297,336 648,668 324,334 162,167 486,502 243,251 729,754 364,877 1,094,632 547,316 273,658 136,829 410,488 205,244 102,622 51,311 153,934 76,967 230,902 115,451 346,354 173,177 519,532 259,766 129,883 389,650 194,825 584,476 292,238 146,119

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