321,858

2 × 3² × 17881

Prime Factor Structure

Factorization String 2 × 3^2 × 17881

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 697,398

Proper Divisor Sum 375,540

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #321851 ← → #321889

1 2 3 6 9 18 17,881 35,762 53,643 107,286 160,929 321,858

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

321,858 160,929 482,788 241,394 120,697 362,092 181,046 90,523 271,570 135,785 407,356 203,678 101,839 305,518 152,759 458,278 229,139 687,418 343,709 1,031,128 515,564 257,782 128,891 386,674 193,337 580,012 290,006 145,003 435,010 217,505 652,516 326,258 163,129 489,388 244,694 122,347 367,042 183,521 550,564 275,282 137,641 412,924 206,462 103,231 309,694 154,847 464,542 232,271 696,814 348,407 1,045,222 522,611 1,567,834 783,917 2,351,752 1,175,876 587,938 293,969 881,908 440,954

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