3,425,142

2 × 3 × 7 × 81551

Starting at 3,425,142, the Collatz iteration reaches 1 after 128 steps. The first transition is 1712571; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 7 × 81551

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 7,828,992

Proper Divisor Sum 4,403,850

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #3425141 ← → #3425189

Radix Representation

Decimal	3425142
Binary	1101000100001101110110 (22 bits)
Octal	0o15041566
Hexadecimal	0x344376

Divisor Catalog (16)

1 2 3 6 7 14 21 42 81,551 163,102 244,653 489,306 570,857 1,141,714 1,712,571 3,425,142

Collatz Trajectory (128 steps to reach 1)

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

3,425,142 1,712,571 5,137,714 2,568,857 7,706,572 3,853,286 1,926,643 5,779,930 2,889,965 8,669,896 4,334,948 2,167,474 1,083,737 3,251,212 1,625,606 812,803 2,438,410 1,219,205 3,657,616 1,828,808 914,404 457,202 228,601 685,804 342,902 171,451 514,354 257,177 771,532 385,766 192,883 578,650 289,325 867,976 433,988 216,994 108,497 325,492 162,746 81,373 244,120 122,060 61,030 30,515 91,546 45,773 137,320 68,660 34,330 17,165 51,496 25,748 12,874 6,437 19,312 9,656 4,828 2,414 1,207 3,622

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