509 × 521

Prime Factor Structure

Factorization String 509 × 521

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 266,220

Proper Divisor Sum 1,031

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #265169 ← → #265193

1 509 521 265,189

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

265,189 795,568 397,784 198,892 99,446 49,723 149,170 74,585 223,756 111,878 55,939 167,818 83,909 251,728 125,864 62,932 31,466 15,733 47,200 23,600 11,800 5,900 2,950 1,475 4,426 2,213 6,640 3,320 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47

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