3 × 7 × 137 × 449

Prime Factor Structure

Factorization String 3 × 7 × 137 × 449

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,987,200

Proper Divisor Sum 695,427

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1291691 ← → #1291783

1 3 7 21 137 411 449 959 1,347 2,877 3,143 9,429 61,513 184,539 430,591 1,291,773

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

1,291,773 3,875,320 1,937,660 968,830 484,415 1,453,246 726,623 2,179,870 1,089,935 3,269,806 1,634,903 4,904,710 2,452,355 7,357,066 3,678,533 11,035,600 5,517,800 2,758,900 1,379,450 689,725 2,069,176 1,034,588 517,294 258,647 775,942 387,971 1,163,914 581,957 1,745,872 872,936 436,468 218,234 109,117 327,352 163,676 81,838 40,919 122,758 61,379 184,138 92,069 276,208 138,104 69,052 34,526 17,263 51,790 25,895 77,686 38,843 116,530 58,265 174,796 87,398 43,699 131,098 65,549 196,648 98,324 49,162

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