3,858,687

3² × 7 × 23 × 2663

Starting at 3,858,687, the Collatz iteration reaches 1 after 229 steps. The first transition is 11576062; the starting value is odd with 24 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 7 × 23 × 2663

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 6,649,344

Proper Divisor Sum 2,790,657

Digit Sum / Digital Root 45 (Root: 9)

Adjacent Primes #3858671 ← → #3858719

Radix Representation

Decimal	3858687
Binary	1110101110000011111111 (22 bits)
Octal	0o16560377
Hexadecimal	0x3AE0FF

Divisor Catalog (24)

1 3 7 9 21 23 63 69 161 207 483 1,449 2,663 7,989 18,641 23,967 55,923 61,249 167,769 183,747 428,743 551,241 1,286,229 3,858,687

Collatz Trajectory (229 steps to reach 1)

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

3,858,687 11,576,062 5,788,031 17,364,094 8,682,047 26,046,142 13,023,071 39,069,214 19,534,607 58,603,822 29,301,911 87,905,734 43,952,867 131,858,602 65,929,301 197,787,904 98,893,952 49,446,976 24,723,488 12,361,744 6,180,872 3,090,436 1,545,218 772,609 2,317,828 1,158,914 579,457 1,738,372 869,186 434,593 1,303,780 651,890 325,945 977,836 488,918 244,459 733,378 366,689 1,100,068 550,034 275,017 825,052 412,526 206,263 618,790 309,395 928,186 464,093 1,392,280 696,140 348,070 174,035 522,106 261,053 783,160 391,580 195,790 97,895 293,686 146,843

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