2² × 3² × 17 × 421

Prime Factor Structure

Factorization String 2^2 × 3^2 × 17 × 421

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 691,236

Proper Divisor Sum 433,584

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #257639 ← → #257657

1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 421 612 842 1,263 1,684 2,526 3,789 5,052 7,157 7,578 14,314 15,156 21,471 28,628 42,942 64,413 85,884 128,826 257,652

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

257,652 128,826 64,413 193,240 96,620 48,310 24,155 72,466 36,233 108,700 54,350 27,175 81,526 40,763 122,290 61,145 183,436 91,718 45,859 137,578 68,789 206,368 103,184 51,592 25,796 12,898 6,449 19,348 9,674 4,837 14,512 7,256 3,628 1,814 907 2,722 1,361 4,084 2,042 1,021 3,064 1,532 766 383 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280 1,640

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