2² × 5 × 61 × 317

Prime Factor Structure

Factorization String 2^2 × 5 × 61 × 317

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 828,072

Proper Divisor Sum 441,332

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #386731 ← → #386747

1 2 4 5 10 20 61 122 244 305 317 610 634 1,220 1,268 1,585 3,170 6,340 19,337 38,674 77,348 96,685 193,370 386,740

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

386,740 193,370 96,685 290,056 145,028 72,514 36,257 108,772 54,386 27,193 81,580 40,790 20,395 61,186 30,593 91,780 45,890 22,945 68,836 34,418 17,209 51,628 25,814 12,907 38,722 19,361 58,084 29,042 14,521 43,564 21,782 10,891 32,674 16,337 49,012 24,506 12,253 36,760 18,380 9,190 4,595 13,786 6,893 20,680 10,340 5,170 2,585 7,756 3,878 1,939 5,818 2,909 8,728 4,364 2,182 1,091 3,274 1,637 4,912 2,456

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