501,221

7² × 53 × 193

Prime Factor Structure

Factorization String 7^2 × 53 × 193

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 597,132

Proper Divisor Sum 95,911

Digit Sum / Digital Root 11 (Root: 2)

Adjacent Primes #501217 ← → #501223

1 7 49 53 193 371 1,351 2,597 9,457 10,229 71,603 501,221

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

501,221 1,503,664 751,832 375,916 187,958 93,979 281,938 140,969 422,908 211,454 105,727 317,182 158,591 475,774 237,887 713,662 356,831 1,070,494 535,247 1,605,742 802,871 2,408,614 1,204,307 3,612,922 1,806,461 5,419,384 2,709,692 1,354,846 677,423 2,032,270 1,016,135 3,048,406 1,524,203 4,572,610 2,286,305 6,858,916 3,429,458 1,714,729 5,144,188 2,572,094 1,286,047 3,858,142 1,929,071 5,787,214 2,893,607 8,680,822 4,340,411 13,021,234 6,510,617 19,531,852 9,765,926 4,882,963 14,648,890 7,324,445 21,973,336 10,986,668 5,493,334 2,746,667 8,240,002 4,120,001

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