19 × 31 × 109 × 181

Prime Factor Structure

Factorization String 19 × 31 × 109 × 181

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 12,812,800

Proper Divisor Sum 1,192,419

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #11620379 ← → #11620391

1 19 31 109 181 589 2,071 3,379 3,439 5,611 19,729 64,201 106,609 374,851 611,599 11,620,381

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

11,620,381 34,861,144 17,430,572 8,715,286 4,357,643 13,072,930 6,536,465 19,609,396 9,804,698 4,902,349 14,707,048 7,353,524 3,676,762 1,838,381 5,515,144 2,757,572 1,378,786 689,393 2,068,180 1,034,090 517,045 1,551,136 775,568 387,784 193,892 96,946 48,473 145,420 72,710 36,355 109,066 54,533 163,600 81,800 40,900 20,450 10,225 30,676 15,338 7,669 23,008 11,504 5,752 2,876 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051

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