3,985,449

3 × 13 × 102191

Starting at 3,985,449, the Collatz iteration reaches 1 after 141 steps. The first transition is 11956348; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 13 × 102191

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 5,722,752

Proper Divisor Sum 1,737,303

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #3985433 ← → #3985451

Radix Representation

Decimal	3985449
Binary	1111001101000000101001 (22 bits)
Octal	0o17150051
Hexadecimal	0x3CD029

Divisor Catalog (8)

1 3 13 39 102,191 306,573 1,328,483 3,985,449

Collatz Trajectory (141 steps to reach 1)

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

3,985,449 11,956,348 5,978,174 2,989,087 8,967,262 4,483,631 13,450,894 6,725,447 20,176,342 10,088,171 30,264,514 15,132,257 45,396,772 22,698,386 11,349,193 34,047,580 17,023,790 8,511,895 25,535,686 12,767,843 38,303,530 19,151,765 57,455,296 28,727,648 14,363,824 7,181,912 3,590,956 1,795,478 897,739 2,693,218 1,346,609 4,039,828 2,019,914 1,009,957 3,029,872 1,514,936 757,468 378,734 189,367 568,102 284,051 852,154 426,077 1,278,232 639,116 319,558 159,779 479,338 239,669 719,008 359,504 179,752 89,876 44,938 22,469 67,408 33,704 16,852 8,426 4,213

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