3² × 7 × 101²

Prime Factor Structure

Factorization String 3^2 × 7 × 101^2

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 1,071,512

Proper Divisor Sum 428,849

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #642623 ← → #642673

1 3 7 9 21 63 101 303 707 909 2,121 6,363 10,201 30,603 71,407 91,809 214,221 642,663

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

642,663 1,927,990 963,995 2,891,986 1,445,993 4,337,980 2,168,990 1,084,495 3,253,486 1,626,743 4,880,230 2,440,115 7,320,346 3,660,173 10,980,520 5,490,260 2,745,130 1,372,565 4,117,696 2,058,848 1,029,424 514,712 257,356 128,678 64,339 193,018 96,509 289,528 144,764 72,382 36,191 108,574 54,287 162,862 81,431 244,294 122,147 366,442 183,221 549,664 274,832 137,416 68,708 34,354 17,177 51,532 25,766 12,883 38,650 19,325 57,976 28,988 14,494 7,247 21,742 10,871 32,614 16,307 48,922 24,461

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