3² × 7 × 13 × 491

Prime Factor Structure

Factorization String 3^2 × 7 × 13 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 716,352

Proper Divisor Sum 314,223

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #402107 ← → #402131

1 3 7 9 13 21 39 63 91 117 273 491 819 1,473 3,437 4,419 6,383 10,311 19,149 30,933 44,681 57,447 134,043 402,129

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

402,129 1,206,388 603,194 301,597 904,792 452,396 226,198 113,099 339,298 169,649 508,948 254,474 127,237 381,712 190,856 95,428 47,714 23,857 71,572 35,786 17,893 53,680 26,840 13,420 6,710 3,355 10,066 5,033 15,100 7,550 3,775 11,326 5,663 16,990 8,495 25,486 12,743 38,230 19,115 57,346 28,673 86,020 43,010 21,505 64,516 32,258 16,129 48,388 24,194 12,097 36,292 18,146 9,073 27,220 13,610 6,805 20,416 10,208 5,104 2,552

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