1,571,221
1571221
Deficient
Odd
Prime
Starting at 1,571,221, the Collatz iteration reaches 1 after 57 steps. The first transition is 4713664; the starting value is odd with 2 positive divisors.
Prime Factor Structure
Factorization String
1571221
Distinct Prime Factors
1
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
2
Divisor Sum (σ)
1,571,222
Proper Divisor Sum
1
Digit Sum / Digital Root
19 (Root: 1)
Radix Representation
| Decimal | 1571221 |
| Binary | 101111111100110010101 (21 bits) |
| Octal | 0o5774625 |
| Hexadecimal | 0x17F995 |
Divisor Catalog (2)
Collatz Trajectory (57 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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