31 × 21187

Prime Factor Structure

Factorization String 31 × 21187

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 678,016

Proper Divisor Sum 21,219

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #656791 ← → #656809

1 31 21,187 656,797

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

656,797 1,970,392 985,196 492,598 246,299 738,898 369,449 1,108,348 554,174 277,087 831,262 415,631 1,246,894 623,447 1,870,342 935,171 2,805,514 1,402,757 4,208,272 2,104,136 1,052,068 526,034 263,017 789,052 394,526 197,263 591,790 295,895 887,686 443,843 1,331,530 665,765 1,997,296 998,648 499,324 249,662 124,831 374,494 187,247 561,742 280,871 842,614 421,307 1,263,922 631,961 1,895,884 947,942 473,971 1,421,914 710,957 2,132,872 1,066,436 533,218 266,609 799,828 399,914 199,957 599,872 299,936 149,968

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