2² × 5 × 17 × 1997

Prime Factor Structure

Factorization String 2^2 × 5 × 17 × 1997

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,510,488

Proper Divisor Sum 831,508

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #678971 ← → #678989

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

678,980 339,490 169,745 509,236 254,618 127,309 381,928 190,964 95,482 47,741 143,224 71,612 35,806 17,903 53,710 26,855 80,566 40,283 120,850 60,425 181,276 90,638 45,319 135,958 67,979 203,938 101,969 305,908 152,954 76,477 229,432 114,716 57,358 28,679 86,038 43,019 129,058 64,529 193,588 96,794 48,397 145,192 72,596 36,298 18,149 54,448 27,224 13,612 6,806 3,403 10,210 5,105 15,316 7,658 3,829 11,488 5,744 2,872 1,436 718

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