213,645

3 × 5 × 14243

Prime Factor Structure

Factorization String 3 × 5 × 14243

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 341,856

Proper Divisor Sum 128,211

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #213641 ← → #213649

1 3 5 15 14,243 42,729 71,215 213,645

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

213,645 640,936 320,468 160,234 80,117 240,352 120,176 60,088 30,044 15,022 7,511 22,534 11,267 33,802 16,901 50,704 25,352 12,676 6,338 3,169 9,508 4,754 2,377 7,132 3,566 1,783 5,350 2,675 8,026 4,013 12,040 6,020 3,010 1,505 4,516 2,258 1,129 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227

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