13 × 17² × 139

Prime Factor Structure

Factorization String 13 × 17^2 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 601,720

Proper Divisor Sum 79,497

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #522211 ← → #522227

1 13 17 139 221 289 1,807 2,363 3,757 30,719 40,171 522,223

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

522,223 1,566,670 783,335 2,350,006 1,175,003 3,525,010 1,762,505 5,287,516 2,643,758 1,321,879 3,965,638 1,982,819 5,948,458 2,974,229 8,922,688 4,461,344 2,230,672 1,115,336 557,668 278,834 139,417 418,252 209,126 104,563 313,690 156,845 470,536 235,268 117,634 58,817 176,452 88,226 44,113 132,340 66,170 33,085 99,256 49,628 24,814 12,407 37,222 18,611 55,834 27,917 83,752 41,876 20,938 10,469 31,408 15,704 7,852 3,926 1,963 5,890 2,945 8,836 4,418 2,209 6,628 3,314

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