λ
Sequence Observatory

5,055,866

2 × 2527933
Deficient Even Composite

Starting at 5,055,866, the Collatz iteration reaches 1 after 219 steps. The first transition is 2527933; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 2527933
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,583,802
Proper Divisor Sum 2,527,936
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #5055859 ← → #5055877

Radix Representation

Decimal 5055866
Binary 10011010010010101111010 (23 bits)
Octal 0o23222572
Hexadecimal 0x4D257A

Divisor Catalog (4)

1 2 2,527,933 5,055,866

Collatz Trajectory (219 steps to reach 1)

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

5,055,866 2,527,933 7,583,800 3,791,900 1,895,950 947,975 2,843,926 1,421,963 4,265,890 2,132,945 6,398,836 3,199,418 1,599,709 4,799,128 2,399,564 1,199,782 599,891 1,799,674 899,837 2,699,512 1,349,756 674,878 337,439 1,012,318 506,159 1,518,478 759,239 2,277,718 1,138,859 3,416,578 1,708,289 5,124,868 2,562,434 1,281,217 3,843,652 1,921,826 960,913 2,882,740 1,441,370 720,685 2,162,056 1,081,028 540,514 270,257 810,772 405,386 202,693 608,080 304,040 152,020 76,010 38,005 114,016 57,008 28,504 14,252 7,126 3,563 10,690 5,345

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