2,205,021
3 × 7 × 13 × 41 × 197
Deficient
Odd
Composite
2,205,021 has digital root 3. The neighboring primes are 2205017 and 2205023; its proper-divisor sum differs from the starting integer by -684,474.
Resources
Prime Factor Structure
Factorization String
3 × 7 × 13 × 41 × 197
Distinct Prime Factors
5
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
32
Divisor Sum (σ)
3,725,568
Proper Divisor Sum
1,520,547
Digit Sum / Digital Root
12 (Root: 3)
Adjacent Primes
#2205017 ← → #2205023
Radix Representation
| Decimal | 2205021 |
| Binary | 1000011010010101011101 (22 bits) |
| Octal | 0o10322535 |
| Hexadecimal | 0x21A55D |
Divisor Catalog (5 of 32)
Collatz Trajectory (86 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.