3,881,658

2 × 3 × 11 × 103 × 571

Starting at 3,881,658, the Collatz iteration reaches 1 after 141 steps. The first transition is 1940829; the starting value is even with 32 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 11 × 103 × 571

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 8,566,272

Proper Divisor Sum 4,684,614

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #3881611 ← → #3881659

Radix Representation

Decimal	3881658
Binary	1110110011101010111010 (22 bits)
Octal	0o16635272
Hexadecimal	0x3B3ABA

Divisor Catalog (32)

1 2 3 6 11 22 33 66 103 206 309 571 618 1,133 1,142 1,713 2,266 3,399 3,426 6,281 6,798 12,562 18,843 37,686 58,813 117,626 176,439 352,878 646,943 1,293,886 1,940,829 3,881,658

Collatz Trajectory (141 steps to reach 1)

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

3,881,658 1,940,829 5,822,488 2,911,244 1,455,622 727,811 2,183,434 1,091,717 3,275,152 1,637,576 818,788 409,394 204,697 614,092 307,046 153,523 460,570 230,285 690,856 345,428 172,714 86,357 259,072 129,536 64,768 32,384 16,192 8,096 4,048 2,024 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155 466 233 700

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