4,878,642

2 × 3 × 813107

Starting at 4,878,642, the Collatz iteration reaches 1 after 149 steps. The first transition is 2439321; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 813107

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 9,757,296

Proper Divisor Sum 4,878,654

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #4878617 ← → #4878661

Radix Representation

Decimal	4878642
Binary	10010100111000100110010 (23 bits)
Octal	0o22470462
Hexadecimal	0x4A7132

Divisor Catalog (8)

1 2 3 6 813,107 1,626,214 2,439,321 4,878,642

Collatz Trajectory (149 steps to reach 1)

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

4,878,642 2,439,321 7,317,964 3,658,982 1,829,491 5,488,474 2,744,237 8,232,712 4,116,356 2,058,178 1,029,089 3,087,268 1,543,634 771,817 2,315,452 1,157,726 578,863 1,736,590 868,295 2,604,886 1,302,443 3,907,330 1,953,665 5,860,996 2,930,498 1,465,249 4,395,748 2,197,874 1,098,937 3,296,812 1,648,406 824,203 2,472,610 1,236,305 3,708,916 1,854,458 927,229 2,781,688 1,390,844 695,422 347,711 1,043,134 521,567 1,564,702 782,351 2,347,054 1,173,527 3,520,582 1,760,291 5,280,874 2,640,437 7,921,312 3,960,656 1,980,328 990,164 495,082 247,541 742,624 371,312 185,656

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