λ
Sequence Observatory

4,961,978

2 × 7 × 47 × 7541
Deficient Even Composite

Starting at 4,961,978, the Collatz iteration reaches 1 after 87 steps. The first transition is 2480989; the starting value is even with 16 positive divisors.

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Prime Factor Structure

Factorization String 2 × 7 × 47 × 7541
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 8,688,384
Proper Divisor Sum 3,726,406
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #4961969 ← → #4962037

Radix Representation

Decimal 4961978
Binary 10010111011011010111010 (23 bits)
Octal 0o22733272
Hexadecimal 0x4BB6BA

Divisor Catalog (5 of 16)

1 2 7 14 47

Collatz Trajectory (87 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.

4,961,978 2,480,989 7,442,968 3,721,484 1,860,742

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