5² × 13² × 17

Prime Factor Structure

Factorization String 5^2 × 13^2 × 17

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 102,114

Proper Divisor Sum 30,289

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #71821 ← → #71837

1 5 13 17 25 65 85 169 221 325 425 845 1,105 2,873 4,225 5,525 14,365 71,825

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

71,825 215,476 107,738 53,869 161,608 80,804 40,402 20,201 60,604 30,302 15,151 45,454 22,727 68,182 34,091 102,274 51,137 153,412 76,706 38,353 115,060 57,530 28,765 86,296 43,148 21,574 10,787 32,362 16,181 48,544 24,272 12,136 6,068 3,034 1,517 4,552 2,276 1,138 569 1,708 854 427 1,282 641 1,924 962 481 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752

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