1,129,991
1129991
Deficient
Odd
Prime
1,129,991 has digital root 5. The neighboring primes are 1129963 and 1130011; its proper-divisor sum differs from the starting integer by -1,129,990.
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Prime Factor Structure
Factorization String
1129991
Distinct Prime Factors
1
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
2
Divisor Sum (σ)
1,129,992
Proper Divisor Sum
1
Digit Sum / Digital Root
32 (Root: 5)
Radix Representation
| Decimal | 1129991 |
| Binary | 100010011111000000111 (21 bits) |
| Octal | 0o4237007 |
| Hexadecimal | 0x113E07 |
Divisor Catalog (2)
Collatz Trajectory (178 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.
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