396,220

2² × 5 × 11 × 1801

Prime Factor Structure

Factorization String 2^2 × 5 × 11 × 1801

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 908,208

Proper Divisor Sum 511,988

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #396217 ← → #396239

1 2 4 5 10 11 20 22 44 55 110 220 1,801 3,602 7,204 9,005 18,010 19,811 36,020 39,622 79,244 99,055 198,110 396,220

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

396,220 198,110 99,055 297,166 148,583 445,750 222,875 668,626 334,313 1,002,940 501,470 250,735 752,206 376,103 1,128,310 564,155 1,692,466 846,233 2,538,700 1,269,350 634,675 1,904,026 952,013 2,856,040 1,428,020 714,010 357,005 1,071,016 535,508 267,754 133,877 401,632 200,816 100,408 50,204 25,102 12,551 37,654 18,827 56,482 28,241 84,724 42,362 21,181 63,544 31,772 15,886 7,943 23,830 11,915 35,746 17,873 53,620 26,810 13,405 40,216 20,108 10,054 5,027 15,082

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