669,409

13² × 17 × 233

Prime Factor Structure

Factorization String 13^2 × 17 × 233

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 770,796

Proper Divisor Sum 101,387

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #669401 ← → #669413

1 13 17 169 221 233 2,873 3,029 3,961 39,377 51,493 669,409

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

669,409 2,008,228 1,004,114 502,057 1,506,172 753,086 376,543 1,129,630 564,815 1,694,446 847,223 2,541,670 1,270,835 3,812,506 1,906,253 5,718,760 2,859,380 1,429,690 714,845 2,144,536 1,072,268 536,134 268,067 804,202 402,101 1,206,304 603,152 301,576 150,788 75,394 37,697 113,092 56,546 28,273 84,820 42,410 21,205 63,616 31,808 15,904 7,952 3,976 1,988 994 497 1,492 746 373 1,120 560 280 140 70 35 106 53 160 80 40 20

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