2,155,206

2 × 3 × 41 × 8761

Prime Factor Structure

Factorization String 2 × 3 × 41 × 8761

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 16

Divisor Sum (σ) 4,416,048

Proper Divisor Sum 2,260,842

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #2155201 ← → #2155207

1 2 3 6 41 82 123 246 8,761 17,522 26,283 52,566 359,201 718,402 1,077,603 2,155,206

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

2,155,206 1,077,603 3,232,810 1,616,405 4,849,216 2,424,608 1,212,304 606,152 303,076 151,538 75,769 227,308 113,654 56,827 170,482 85,241 255,724 127,862 63,931 191,794 95,897 287,692 143,846 71,923 215,770 107,885 323,656 161,828 80,914 40,457 121,372 60,686 30,343 91,030 45,515 136,546 68,273 204,820 102,410 51,205 153,616 76,808 38,404 19,202 9,601 28,804 14,402 7,201 21,604 10,802 5,401 16,204 8,102 4,051 12,154 6,077 18,232 9,116 4,558 2,279

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