3,866,009

7 × 479 × 1153

Starting at 3,866,009, the Collatz iteration reaches 1 after 216 steps. The first transition is 11598028; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 7 × 479 × 1153

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 4,431,360

Proper Divisor Sum 565,351

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #3865993 ← → #3866011

Radix Representation

Decimal	3866009
Binary	1110101111110110011001 (22 bits)
Octal	0o16576631
Hexadecimal	0x3AFD99

Divisor Catalog (8)

1 7 479 1,153 3,353 8,071 552,287 3,866,009

Collatz Trajectory (216 steps to reach 1)

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

3,866,009 11,598,028 5,799,014 2,899,507 8,698,522 4,349,261 13,047,784 6,523,892 3,261,946 1,630,973 4,892,920 2,446,460 1,223,230 611,615 1,834,846 917,423 2,752,270 1,376,135 4,128,406 2,064,203 6,192,610 3,096,305 9,288,916 4,644,458 2,322,229 6,966,688 3,483,344 1,741,672 870,836 435,418 217,709 653,128 326,564 163,282 81,641 244,924 122,462 61,231 183,694 91,847 275,542 137,771 413,314 206,657 619,972 309,986 154,993 464,980 232,490 116,245 348,736 174,368 87,184 43,592 21,796 10,898 5,449 16,348 8,174 4,087

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