4,129,049

29 × 142381

Starting at 4,129,049, the Collatz iteration reaches 1 after 198 steps. The first transition is 12387148; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 29 × 142381

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,271,460

Proper Divisor Sum 142,411

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #4129039 ← → #4129057

Radix Representation

Decimal	4129049
Binary	1111110000000100011001 (22 bits)
Octal	0o17600431
Hexadecimal	0x3F0119

Divisor Catalog (4)

1 29 142,381 4,129,049

Collatz Trajectory (198 steps to reach 1)

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

4,129,049 12,387,148 6,193,574 3,096,787 9,290,362 4,645,181 13,935,544 6,967,772 3,483,886 1,741,943 5,225,830 2,612,915 7,838,746 3,919,373 11,758,120 5,879,060 2,939,530 1,469,765 4,409,296 2,204,648 1,102,324 551,162 275,581 826,744 413,372 206,686 103,343 310,030 155,015 465,046 232,523 697,570 348,785 1,046,356 523,178 261,589 784,768 392,384 196,192 98,096 49,048 24,524 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367

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