2,216,172
22 × 3 × 72 × 3769
Abundant
Even
Composite
Starting at 2,216,172, the Collatz iteration reaches 1 after 179 steps. The first transition is 1108086; the starting value is even with 36 positive divisors.
Resources
Prime Factor Structure
Factorization String
2^2 × 3 × 7^2 × 3769
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
36
Divisor Sum (σ)
6,016,920
Proper Divisor Sum
3,800,748
Digit Sum / Digital Root
21 (Root: 3)
Adjacent Primes
#2216167 ← → #2216197
Radix Representation
| Decimal | 2216172 |
| Binary | 1000011101000011101100 (22 bits) |
| Octal | 0o10350354 |
| Hexadecimal | 0x21D0EC |
Divisor Catalog (5 of 36)
Collatz Trajectory (179 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.