2 × 5 × 19 × 643

Prime Factor Structure

Factorization String 2 × 5 × 19 × 643

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 231,840

Proper Divisor Sum 109,670

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #122167 ← → #122173

1 2 5 10 19 38 95 190 643 1,286 3,215 6,430 12,217 24,434 61,085 122,170

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

122,170 61,085 183,256 91,628 45,814 22,907 68,722 34,361 103,084 51,542 25,771 77,314 38,657 115,972 57,986 28,993 86,980 43,490 21,745 65,236 32,618 16,309 48,928 24,464 12,232 6,116 3,058 1,529 4,588 2,294 1,147 3,442 1,721 5,164 2,582 1,291 3,874 1,937 5,812 2,906 1,453 4,360 2,180 1,090 545 1,636 818 409 1,228 614 307 922 461 1,384 692 346 173 520 260 130

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