2² × 5² × 197

Prime Factor Structure

Factorization String 2^2 × 5^2 × 197

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 42,966

Proper Divisor Sum 23,266

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #19699 ← → #19709

1 2 4 5 10 20 25 50 100 197 394 788 985 1,970 3,940 4,925 9,850 19,700

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

19,700 9,850 4,925 14,776 7,388 3,694 1,847 5,542 2,771 8,314 4,157 12,472 6,236 3,118 1,559 4,678 2,339 7,018 3,509 10,528 5,264 2,632 1,316 658 329 988 494 247 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22

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