2,842,405

5 × 568481

Starting at 2,842,405, the Collatz iteration reaches 1 after 151 steps. The first transition is 8527216; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 568481

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,410,892

Proper Divisor Sum 568,487

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #2842403 ← → #2842439

Radix Representation

Decimal	2842405
Binary	1010110101111100100101 (22 bits)
Octal	0o12657445
Hexadecimal	0x2B5F25

Divisor Catalog (4)

1 5 568,481 2,842,405

Collatz Trajectory (151 steps to reach 1)

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

2,842,405 8,527,216 4,263,608 2,131,804 1,065,902 532,951 1,598,854 799,427 2,398,282 1,199,141 3,597,424 1,798,712 899,356 449,678 224,839 674,518 337,259 1,011,778 505,889 1,517,668 758,834 379,417 1,138,252 569,126 284,563 853,690 426,845 1,280,536 640,268 320,134 160,067 480,202 240,101 720,304 360,152 180,076 90,038 45,019 135,058 67,529 202,588 101,294 50,647 151,942 75,971 227,914 113,957 341,872 170,936 85,468 42,734 21,367 64,102 32,051 96,154 48,077 144,232 72,116 36,058 18,029

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