7² × 13 × 643

Prime Factor Structure

Factorization String 7^2 × 13 × 643

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 513,912

Proper Divisor Sum 104,321

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #409589 ← → #409597

1 7 13 49 91 637 643 4,501 8,359 31,507 58,513 409,591

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

409,591 1,228,774 614,387 1,843,162 921,581 2,764,744 1,382,372 691,186 345,593 1,036,780 518,390 259,195 777,586 388,793 1,166,380 583,190 291,595 874,786 437,393 1,312,180 656,090 328,045 984,136 492,068 246,034 123,017 369,052 184,526 92,263 276,790 138,395 415,186 207,593 622,780 311,390 155,695 467,086 233,543 700,630 350,315 1,050,946 525,473 1,576,420 788,210 394,105 1,182,316 591,158 295,579 886,738 443,369 1,330,108 665,054 332,527 997,582 498,791 1,496,374 748,187 2,244,562 1,122,281 3,366,844

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