2,213,845
5 × 442769
Deficient
Odd
Composite
2,213,845 factors as 5 × 442769. Its 4 positive divisors give a proper-divisor sum of 442,775, so this integer is deficient. The Collatz stopping time is 135 steps.
Resources
Prime Factor Structure
Factorization String
5 × 442769
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
2,656,620
Proper Divisor Sum
442,775
Digit Sum / Digital Root
25 (Root: 7)
Adjacent Primes
#2213843 ← → #2213867
Radix Representation
| Decimal | 2213845 |
| Binary | 1000011100011111010101 (22 bits) |
| Octal | 0o10343725 |
| Hexadecimal | 0x21C7D5 |
Divisor Catalog (4)
Collatz Trajectory (135 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.