λ
Sequence Observatory

5,158,844

22 × 1289711
Deficient Even Composite

Starting at 5,158,844, the Collatz iteration reaches 1 after 188 steps. The first transition is 2579422; the starting value is even with 6 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 1289711
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 9,027,984
Proper Divisor Sum 3,869,140
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #5158843 ← → #5158847

Radix Representation

Decimal 5158844
Binary 10011101011011110111100 (23 bits)
Octal 0o23533674
Hexadecimal 0x4EB7BC

Divisor Catalog (6)

1 2 4 1,289,711 2,579,422 5,158,844

Collatz Trajectory (188 steps to reach 1)

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

5,158,844 2,579,422 1,289,711 3,869,134 1,934,567 5,803,702 2,901,851 8,705,554 4,352,777 13,058,332 6,529,166 3,264,583 9,793,750 4,896,875 14,690,626 7,345,313 22,035,940 11,017,970 5,508,985 16,526,956 8,263,478 4,131,739 12,395,218 6,197,609 18,592,828 9,296,414 4,648,207 13,944,622 6,972,311 20,916,934 10,458,467 31,375,402 15,687,701 47,063,104 23,531,552 11,765,776 5,882,888 2,941,444 1,470,722 735,361 2,206,084 1,103,042 551,521 1,654,564 827,282 413,641 1,240,924 620,462 310,231 930,694 465,347 1,396,042 698,021 2,094,064 1,047,032 523,516 261,758 130,879 392,638 196,319

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