3 × 7 × 29 × 421

Prime Factor Structure

Factorization String 3 × 7 × 29 × 421

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 405,120

Proper Divisor Sum 148,731

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #256369 ← → #256391

1 3 7 21 29 87 203 421 609 1,263 2,947 8,841 12,209 36,627 85,463 256,389

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

256,389 769,168 384,584 192,292 96,146 48,073 144,220 72,110 36,055 108,166 54,083 162,250 81,125 243,376 121,688 60,844 30,422 15,211 45,634 22,817 68,452 34,226 17,113 51,340 25,670 12,835 38,506 19,253 57,760 28,880 14,440 7,220 3,610 1,805 5,416 2,708 1,354 677 2,032 1,016 508 254 127 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640

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