2² × 5² × 647

Prime Factor Structure

Factorization String 2^2 × 5^2 × 647

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 140,616

Proper Divisor Sum 75,916

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #64693 ← → #64709

1 2 4 5 10 20 25 50 100 647 1,294 2,588 3,235 6,470 12,940 16,175 32,350 64,700

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

64,700 32,350 16,175 48,526 24,263 72,790 36,395 109,186 54,593 163,780 81,890 40,945 122,836 61,418 30,709 92,128 46,064 23,032 11,516 5,758 2,879 8,638 4,319 12,958 6,479 19,438 9,719 29,158 14,579 43,738 21,869 65,608 32,804 16,402 8,201 24,604 12,302 6,151 18,454 9,227 27,682 13,841 41,524 20,762 10,381 31,144 15,572 7,786 3,893 11,680 5,840 2,920 1,460 730 365 1,096 548 274 137 412

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