2² × 7² × 1091

Prime Factor Structure

Factorization String 2^2 × 7^2 × 1091

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 435,708

Proper Divisor Sum 221,872

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #213833 ← → #213847

1 2 4 7 14 28 49 98 196 1,091 2,182 4,364 7,637 15,274 30,548 53,459 106,918 213,836

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

213,836 106,918 53,459 160,378 80,189 240,568 120,284 60,142 30,071 90,214 45,107 135,322 67,661 202,984 101,492 50,746 25,373 76,120 38,060 19,030 9,515 28,546 14,273 42,820 21,410 10,705 32,116 16,058 8,029 24,088 12,044 6,022 3,011 9,034 4,517 13,552 6,776 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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