1,645,145
5 × 151 × 2179
Deficient
Odd
Composite
Starting at 1,645,145, the Collatz iteration reaches 1 after 176 steps. The first transition is 4935436; the starting value is odd with 8 positive divisors.
Resources
Prime Factor Structure
Factorization String
5 × 151 × 2179
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
1,988,160
Proper Divisor Sum
343,015
Digit Sum / Digital Root
26 (Root: 8)
Adjacent Primes
#1645129 ← → #1645151
Radix Representation
| Decimal | 1645145 |
| Binary | 110010001101001011001 (21 bits) |
| Octal | 0o6215131 |
| Hexadecimal | 0x191A59 |
Divisor Catalog (5 of 8)
Collatz Trajectory (176 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.