3 × 5² × 13 × 19

Prime Factor Structure

Factorization String 3 × 5^2 × 13 × 19

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 34,720

Proper Divisor Sum 16,195

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #18523 ← → #18539

1 3 5 13 15 19 25 39 57 65 75 95 195 247 285 325 475 741 975 1,235 1,425 3,705 6,175 18,525

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

18,525 55,576 27,788 13,894 6,947 20,842 10,421 31,264 15,632 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719

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