2² × 5² × 6481

Prime Factor Structure

Factorization String 2^2 × 5^2 × 6481

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 1,406,594

Proper Divisor Sum 758,494

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #648097 ← → #648101

1 2 4 5 10 20 25 50 100 6,481 12,962 25,924 32,405 64,810 129,620 162,025 324,050 648,100

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

648,100 324,050 162,025 486,076 243,038 121,519 364,558 182,279 546,838 273,419 820,258 410,129 1,230,388 615,194 307,597 922,792 461,396 230,698 115,349 346,048 173,024 86,512 43,256 21,628 10,814 5,407 16,222 8,111 24,334 12,167 36,502 18,251 54,754 27,377 82,132 41,066 20,533 61,600 30,800 15,400 7,700 3,850 1,925 5,776 2,888 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376 688

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