λ
Integer Codex

1,663,871

112 × 13751
Deficient Odd Composite

For 1,663,871, the 6 positive divisors have a total of 1,829,016. Removing 1,663,871 leaves 165,145, which gives the deficient classification.

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Prime Factor Structure

Factorization String 11^2 × 13751
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 1,829,016
Proper Divisor Sum 165,145
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1663867 ← → #1663873

Radix Representation

Decimal 1663871
Binary 110010110001101111111 (21 bits)
Octal 0o6261577
Hexadecimal 0x19637F

Divisor Catalog (5 of 6)

1 11 121 13,751 151,261

Collatz Trajectory (176 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.

1,663,871 4,991,614 2,495,807 7,487,422 3,743,711

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