2² × 7² × 1987

Prime Factor Structure

Factorization String 2^2 × 7^2 × 1987

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 793,212

Proper Divisor Sum 403,760

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #389447 ← → #389461

1 2 4 7 14 28 49 98 196 1,987 3,974 7,948 13,909 27,818 55,636 97,363 194,726 389,452

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

389,452 194,726 97,363 292,090 146,045 438,136 219,068 109,534 54,767 164,302 82,151 246,454 123,227 369,682 184,841 554,524 277,262 138,631 415,894 207,947 623,842 311,921 935,764 467,882 233,941 701,824 350,912 175,456 87,728 43,864 21,932 10,966 5,483 16,450 8,225 24,676 12,338 6,169 18,508 9,254 4,627 13,882 6,941 20,824 10,412 5,206 2,603 7,810 3,905 11,716 5,858 2,929 8,788 4,394 2,197 6,592 3,296 1,648 824 412

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