λ
Sequence Observatory

2,126,467

7 × 303781
Deficient Odd Composite

Starting at 2,126,467, the Collatz iteration reaches 1 after 47 steps. The first transition is 6379402; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 303781
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,430,256
Proper Divisor Sum 303,789
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #2126459 ← → #2126491

Radix Representation

Decimal 2126467
Binary 1000000111001010000011 (22 bits)
Octal 0o10071203
Hexadecimal 0x207283

Divisor Catalog (4)

1 7 303,781 2,126,467

Collatz Trajectory (47 steps to reach 1)

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

2,126,467 6,379,402 3,189,701 9,569,104 4,784,552 2,392,276 1,196,138 598,069 1,794,208 897,104 448,552 224,276 112,138 56,069 168,208 84,104 42,052 21,026 10,513 31,540 15,770 7,885 23,656 11,828 5,914 2,957 8,872 4,436 2,218 1,109 3,328 1,664 832 416 208 104 52 26 13 40 20 10 5 16 8 4 2 1

More profiles

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