2² × 5 × 19801

Prime Factor Structure

Factorization String 2^2 × 5 × 19801

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 831,684

Proper Divisor Sum 435,664

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #396001 ← → #396029

1 2 4 5 10 20 19,801 39,602 79,204 99,005 198,010 396,020

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

396,020 198,010 99,005 297,016 148,508 74,254 37,127 111,382 55,691 167,074 83,537 250,612 125,306 62,653 187,960 93,980 46,990 23,495 70,486 35,243 105,730 52,865 158,596 79,298 39,649 118,948 59,474 29,737 89,212 44,606 22,303 66,910 33,455 100,366 50,183 150,550 75,275 225,826 112,913 338,740 169,370 84,685 254,056 127,028 63,514 31,757 95,272 47,636 23,818 11,909 35,728 17,864 8,932 4,466 2,233 6,700 3,350 1,675 5,026 2,513

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