1,378,978
2 × 347 × 1987
Deficient
Even
Composite
Starting at 1,378,978, the Collatz iteration reaches 1 after 168 steps. The first transition is 689489; the starting value is even with 8 positive divisors.
Prime Factor Structure
Factorization String
2 × 347 × 1987
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
2,075,472
Proper Divisor Sum
696,494
Digit Sum / Digital Root
43 (Root: 7)
Adjacent Primes
#1378969 ← → #1378997
Radix Representation
| Decimal | 1378978 |
| Binary | 101010000101010100010 (21 bits) |
| Octal | 0o5205242 |
| Hexadecimal | 0x150AA2 |
Divisor Catalog (8)
Collatz Trajectory (168 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):