3 × 5² × 7² × 19

Prime Factor Structure

Factorization String 3 × 5^2 × 7^2 × 19

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 141,360

Proper Divisor Sum 71,535

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #69821 ← → #69827

1 3 5 7 15 19 21 25 35 49 57 75 95 105 133 147 175 245 285 399 475 525 665 735 931 1,225 1,425 1,995 2,793 3,325 3,675 4,655 9,975 13,965 23,275 69,825

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

69,825 209,476 104,738 52,369 157,108 78,554 39,277 117,832 58,916 29,458 14,729 44,188 22,094 11,047 33,142 16,571 49,714 24,857 74,572 37,286 18,643 55,930 27,965 83,896 41,948 20,974 10,487 31,462 15,731 47,194 23,597 70,792 35,396 17,698 8,849 26,548 13,274 6,637 19,912 9,956 4,978 2,489 7,468 3,734 1,867 5,602 2,801 8,404 4,202 2,101 6,304 3,152 1,576 788 394 197 592 296 148 74

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