4,204,521
33 × 155723
Deficient
Odd
Composite
4,204,521 has digital root 9. The neighboring primes are 4204511 and 4204523; its proper-divisor sum differs from the starting integer by -2,180,082.
Resources
Prime Factor Structure
Factorization String
3^3 × 155723
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
6,228,960
Proper Divisor Sum
2,024,439
Digit Sum / Digital Root
18 (Root: 9)
Adjacent Primes
#4204511 ← → #4204523
Radix Representation
| Decimal | 4204521 |
| Binary | 10000000010011111101001 (23 bits) |
| Octal | 0o20023751 |
| Hexadecimal | 0x4027E9 |
Divisor Catalog (5 of 8)
Collatz Trajectory (128 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.