λ
Harmonic Matrix

6,987,215

5 × 1397443
Deficient Odd Composite

6,987,215 has digital root 2. The neighboring primes are 6987203 and 6987241; its proper-divisor sum differs from the starting integer by -5,589,766.

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Prime Factor Structure

Factorization String 5 × 1397443
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,384,664
Proper Divisor Sum 1,397,449
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #6987203 ← → #6987241

Radix Representation

Decimal 6987215
Binary 11010101001110111001111 (23 bits)
Octal 0o32516717
Hexadecimal 0x6A9DCF

Divisor Catalog (4)

1 5 1,397,443 6,987,215

Collatz Trajectory (103 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.

6,987,215 20,961,646 10,480,823 31,442,470 15,721,235

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