7² × 17 × 19 × 43

Prime Factor Structure

Factorization String 7^2 × 17 × 19 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 902,880

Proper Divisor Sum 222,319

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #680539 ← → #680567

1 7 17 19 43 49 119 133 301 323 731 817 833 931 2,107 2,261 5,117 5,719 13,889 15,827 35,819 40,033 97,223 680,561

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

680,561 2,041,684 1,020,842 510,421 1,531,264 765,632 382,816 191,408 95,704 47,852 23,926 11,963 35,890 17,945 53,836 26,918 13,459 40,378 20,189 60,568 30,284 15,142 7,571 22,714 11,357 34,072 17,036 8,518 4,259 12,778 6,389 19,168 9,584 4,792 2,396 1,198 599 1,798 899 2,698 1,349 4,048 2,024 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728

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