3 × 7 × 139 × 223

Prime Factor Structure

Factorization String 3 × 7 × 139 × 223

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,003,520

Proper Divisor Sum 352,583

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #650933 ← → #650953

1 3 7 21 139 223 417 669 973 1,561 2,919 4,683 30,997 92,991 216,979 650,937

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

650,937 1,952,812 976,406 488,203 1,464,610 732,305 2,196,916 1,098,458 549,229 1,647,688 823,844 411,922 205,961 617,884 308,942 154,471 463,414 231,707 695,122 347,561 1,042,684 521,342 260,671 782,014 391,007 1,173,022 586,511 1,759,534 879,767 2,639,302 1,319,651 3,958,954 1,979,477 5,938,432 2,969,216 1,484,608 742,304 371,152 185,576 92,788 46,394 23,197 69,592 34,796 17,398 8,699 26,098 13,049 39,148 19,574 9,787 29,362 14,681 44,044 22,022 11,011 33,034 16,517 49,552 24,776

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