1,257,879
3 × 72 × 43 × 199
Deficient
Odd
Composite
Starting at 1,257,879, the Collatz iteration reaches 1 after 155 steps. The first transition is 3773638; the starting value is odd with 24 positive divisors.
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Prime Factor Structure
Factorization String
3 × 7^2 × 43 × 199
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
24
Divisor Sum (σ)
2,006,400
Proper Divisor Sum
748,521
Digit Sum / Digital Root
39 (Root: 3)
Radix Representation
| Decimal | 1257879 |
| Binary | 100110011000110010111 (21 bits) |
| Octal | 0o4630627 |
| Hexadecimal | 0x133197 |
Divisor Catalog (5 of 24)
Collatz Trajectory (155 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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