2² × 5 × 20357

Prime Factor Structure

Factorization String 2^2 × 5 × 20357

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 855,036

Proper Divisor Sum 447,896

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #407137 ← → #407149

1 2 4 5 10 20 20,357 40,714 81,428 101,785 203,570 407,140

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

407,140 203,570 101,785 305,356 152,678 76,339 229,018 114,509 343,528 171,764 85,882 42,941 128,824 64,412 32,206 16,103 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

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