1,627,438
2 × 31 × 26249
Deficient
Even
Composite
1,627,438 has digital root 4. The neighboring primes are 1627429 and 1627441; its proper-divisor sum differs from the starting integer by -734,876.
Resources
Prime Factor Structure
Factorization String
2 × 31 × 26249
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
2,520,000
Proper Divisor Sum
892,562
Digit Sum / Digital Root
31 (Root: 4)
Adjacent Primes
#1627429 ← → #1627441
Radix Representation
| Decimal | 1627438 |
| Binary | 110001101010100101110 (21 bits) |
| Octal | 0o6152456 |
| Hexadecimal | 0x18D52E |
Divisor Catalog (5 of 8)
Collatz Trajectory (207 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.