λ
Sigma Notebook

6,638,117

157 × 42281
Deficient Odd Composite

6,638,117 is odd and not a perfect square. Its factorization is 157 × 42281 and its 4 divisors sum to 6,680,556.

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Prime Factor Structure

Factorization String 157 × 42281
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 6,680,556
Proper Divisor Sum 42,439
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #6638101 ← → #6638131

Radix Representation

Decimal 6638117
Binary 11001010100101000100101 (23 bits)
Octal 0o31245045
Hexadecimal 0x654A25

Divisor Catalog (4)

1 157 42,281 6,638,117

Collatz Trajectory (253 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.

6,638,117 19,914,352 9,957,176 4,978,588 2,489,294

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