321,090

2 × 3 × 5 × 7 × 11 × 139

Prime Factor Structure

Factorization String 2 × 3 × 5 × 7 × 11 × 139

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Total Divisors 64

Divisor Sum (σ) 967,680

Proper Divisor Sum 646,590

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #321077 ← → #321091

1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 139 154 165 210 231 278 330 385 417 462 695 770 834 973 1,155 1,390 1,529 1,946 2,085 2,310 2,919 3,058 4,170 4,587 4,865 5,838 7,645 9,174 9,730 10,703 14,595 15,290 21,406 22,935 29,190 32,109 45,870 53,515

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

321,090 160,545 481,636 240,818 120,409 361,228 180,614 90,307 270,922 135,461 406,384 203,192 101,596 50,798 25,399 76,198 38,099 114,298 57,149 171,448 85,724 42,862 21,431 64,294 32,147 96,442 48,221 144,664 72,332 36,166 18,083 54,250 27,125 81,376 40,688 20,344 10,172 5,086 2,543 7,630 3,815 11,446 5,723 17,170 8,585 25,756 12,878 6,439 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452 12,226

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