12,378,870

2 × 3² × 5 × 7³ × 401

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 7^3 × 401

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 96

Divisor Sum (σ) 37,627,200

Proper Divisor Sum 25,248,330

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #12378859 ← → #12378917

1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 126 147 210 245 294 315 343 401 441 490 630 686 735 802 882 1,029 1,203 1,470 1,715 2,005 2,058 2,205 2,406 2,807 3,087 3,430 3,609 4,010 4,410 5,145 5,614 6,015 6,174 7,218 8,421 10,290 12,030 14,035

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

12,378,870 6,189,435 18,568,306 9,284,153 27,852,460 13,926,230 6,963,115 20,889,346 10,444,673 31,334,020 15,667,010 7,833,505 23,500,516 11,750,258 5,875,129 17,625,388 8,812,694 4,406,347 13,219,042 6,609,521 19,828,564 9,914,282 4,957,141 14,871,424 7,435,712 3,717,856 1,858,928 929,464 464,732 232,366 116,183 348,550 174,275 522,826 261,413 784,240 392,120 196,060 98,030 49,015 147,046 73,523 220,570 110,285 330,856 165,428 82,714 41,357 124,072 62,036 31,018 15,509 46,528 23,264 11,632 5,816 2,908 1,454 727 2,182

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