2 × 3² × 21397

Prime Factor Structure

Factorization String 2 × 3^2 × 21397

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 834,522

Proper Divisor Sum 449,376

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #385141 ← → #385153

1 2 3 6 9 18 21,397 42,794 64,191 128,382 192,573 385,146

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

385,146 192,573 577,720 288,860 144,430 72,215 216,646 108,323 324,970 162,485 487,456 243,728 121,864 60,932 30,466 15,233 45,700 22,850 11,425 34,276 17,138 8,569 25,708 12,854 6,427 19,282 9,641 28,924 14,462 7,231 21,694 10,847 32,542 16,271 48,814 24,407 73,222 36,611 109,834 54,917 164,752 82,376 41,188 20,594 10,297 30,892 15,446 7,723 23,170 11,585 34,756 17,378 8,689 26,068 13,034 6,517 19,552 9,776 4,888 2,444

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