λ
Harmonic Matrix

1,307,917

13 × 100609
Deficient Odd Composite

1,307,917 has digital root 1. The neighboring primes are 1307909 and 1307923; its proper-divisor sum differs from the starting integer by -1,207,294.

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Prime Factor Structure

Factorization String 13 × 100609
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,408,540
Proper Divisor Sum 100,623
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1307909 ← → #1307923

Radix Representation

Decimal 1307917
Binary 100111111010100001101 (21 bits)
Octal 0o4772415
Hexadecimal 0x13F50D

Divisor Catalog (4)

1 13 100,609 1,307,917

Collatz Trajectory (41 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.

1,307,917 3,923,752 1,961,876 980,938 490,469

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