2 × 5² × 31 × 439

Prime Factor Structure

Factorization String 2 × 5^2 × 31 × 439

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,309,440

Proper Divisor Sum 628,990

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #680443 ← → #680453

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

680,450 340,225 1,020,676 510,338 255,169 765,508 382,754 191,377 574,132 287,066 143,533 430,600 215,300 107,650 53,825 161,476 80,738 40,369 121,108 60,554 30,277 90,832 45,416 22,708 11,354 5,677 17,032 8,516 4,258 2,129 6,388 3,194 1,597 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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