2,137,221

3² × 73 × 3253

Prime Factor Structure

Factorization String 3^2 × 73 × 3253

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 3,130,348

Proper Divisor Sum 993,127

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #2137211 ← → #2137237

1 3 9 73 219 657 3,253 9,759 29,277 237,469 712,407 2,137,221

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

2,137,221 6,411,664 3,205,832 1,602,916 801,458 400,729 1,202,188 601,094 300,547 901,642 450,821 1,352,464 676,232 338,116 169,058 84,529 253,588 126,794 63,397 190,192 95,096 47,548 23,774 11,887 35,662 17,831 53,494 26,747 80,242 40,121 120,364 60,182 30,091 90,274 45,137 135,412 67,706 33,853 101,560 50,780 25,390 12,695 38,086 19,043 57,130 28,565 85,696 42,848 21,424 10,712 5,356 2,678 1,339 4,018 2,009 6,028 3,014 1,507 4,522 2,261

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