3² × 71167

Prime Factor Structure

Factorization String 3^2 × 71167

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 925,184

Proper Divisor Sum 284,681

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640499 ← → #640529

1 3 9 71,167 213,501 640,503

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

640,503 1,921,510 960,755 2,882,266 1,441,133 4,323,400 2,161,700 1,080,850 540,425 1,621,276 810,638 405,319 1,215,958 607,979 1,823,938 911,969 2,735,908 1,367,954 683,977 2,051,932 1,025,966 512,983 1,538,950 769,475 2,308,426 1,154,213 3,462,640 1,731,320 865,660 432,830 216,415 649,246 324,623 973,870 486,935 1,460,806 730,403 2,191,210 1,095,605 3,286,816 1,643,408 821,704 410,852 205,426 102,713 308,140 154,070 77,035 231,106 115,553 346,660 173,330 86,665 259,996 129,998 64,999 194,998 97,499 292,498 146,249

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