13 × 19 × 1993

Prime Factor Structure

Factorization String 13 × 19 × 1993

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 558,320

Proper Divisor Sum 66,049

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #492257 ← → #492281

1 13 19 247 1,993 25,909 37,867 492,271

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

492,271 1,476,814 738,407 2,215,222 1,107,611 3,322,834 1,661,417 4,984,252 2,492,126 1,246,063 3,738,190 1,869,095 5,607,286 2,803,643 8,410,930 4,205,465 12,616,396 6,308,198 3,154,099 9,462,298 4,731,149 14,193,448 7,096,724 3,548,362 1,774,181 5,322,544 2,661,272 1,330,636 665,318 332,659 997,978 498,989 1,496,968 748,484 374,242 187,121 561,364 280,682 140,341 421,024 210,512 105,256 52,628 26,314 13,157 39,472 19,736 9,868 4,934 2,467 7,402 3,701 11,104 5,552 2,776 1,388 694 347 1,042 521

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