λ
Ratio Atlas

4,139,878

2 × 739 × 2801
Deficient Even Composite

4,139,878 factors as 2 × 739 × 2801. Its 8 positive divisors give a proper-divisor sum of 2,080,562, so this integer is deficient. The Collatz stopping time is 198 steps.

Prime Factor Structure

Factorization String 2 × 739 × 2801
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,220,440
Proper Divisor Sum 2,080,562
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #4139873 ← → #4139881

Radix Representation

Decimal 4139878
Binary 1111110010101101100110 (22 bits)
Octal 0o17625546
Hexadecimal 0x3F2B66

Divisor Catalog (8)

Collatz Trajectory (198 steps to reach 1)

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

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