2,147,145

3 × 5 × 7 × 11² × 13²

Prime Factor Structure

Factorization String 3 × 5 × 7 × 11^2 × 13^2

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 72

Divisor Sum (σ) 4,673,088

Proper Divisor Sum 2,525,943

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #2147137 ← → #2147161

1 3 5 7 11 13 15 21 33 35 39 55 65 77 91 105 121 143 165 169 195 231 273 363 385 429 455 507 605 715 845 847 1,001 1,155 1,183 1,365 1,573 1,815 1,859 2,145 2,535 2,541 3,003 3,549 4,235 4,719 5,005 5,577 5,915 7,865 9,295 11,011 12,705 13,013 15,015 17,745 20,449 23,595 27,885 33,033

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

2,147,145 6,441,436 3,220,718 1,610,359 4,831,078 2,415,539 7,246,618 3,623,309 10,869,928 5,434,964 2,717,482 1,358,741 4,076,224 2,038,112 1,019,056 509,528 254,764 127,382 63,691 191,074 95,537 286,612 143,306 71,653 214,960 107,480 53,740 26,870 13,435 40,306 20,153 60,460 30,230 15,115 45,346 22,673 68,020 34,010 17,005 51,016 25,508 12,754 6,377 19,132 9,566 4,783 14,350 7,175 21,526 10,763 32,290 16,145 48,436 24,218 12,109 36,328 18,164 9,082 4,541 13,624

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