3 × 7² × 13 × 211

Prime Factor Structure

Factorization String 3 × 7^2 × 13 × 211

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 676,704

Proper Divisor Sum 273,483

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #403219 ← → #403241

1 3 7 13 21 39 49 91 147 211 273 633 637 1,477 1,911 2,743 4,431 8,229 10,339 19,201 31,017 57,603 134,407 403,221

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

403,221 1,209,664 604,832 302,416 151,208 75,604 37,802 18,901 56,704 28,352 14,176 7,088 3,544 1,772 886 443 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422 211 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13

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