3 × 17² × 251

Prime Factor Structure

Factorization String 3 × 17^2 × 251

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 309,456

Proper Divisor Sum 91,839

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #217579 ← → #217619

1 3 17 51 251 289 753 867 4,267 12,801 72,539 217,617

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

217,617 652,852 326,426 163,213 489,640 244,820 122,410 61,205 183,616 91,808 45,904 22,952 11,476 5,738 2,869 8,608 4,304 2,152 1,076 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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