λ
Sequence Observatory

6,921,416

23 × 865177
Deficient Even Composite

Starting at 6,921,416, the Collatz iteration reaches 1 after 46 steps. The first transition is 3460708; the starting value is even with 8 positive divisors.

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Prime Factor Structure

Factorization String 2^3 × 865177
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 12,977,670
Proper Divisor Sum 6,056,254
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #6921403 ← → #6921437

Radix Representation

Decimal 6921416
Binary 11010011001110011001000 (23 bits)
Octal 0o32316310
Hexadecimal 0x699CC8

Divisor Catalog (5 of 8)

Collatz Trajectory (46 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

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