7,870,990
2 × 5 × 787099
Deficient
Even
Composite
Starting at 7,870,990, the Collatz iteration reaches 1 after 147 steps. The first transition is 3935495; the starting value is even with 8 positive divisors.
Resources
Prime Factor Structure
Factorization String
2 × 5 × 787099
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
14,167,800
Proper Divisor Sum
6,296,810
Digit Sum / Digital Root
40 (Root: 4)
Adjacent Primes
#7870957 ← → #7871029
Radix Representation
| Decimal | 7870990 |
| Binary | 11110000001101000001110 (23 bits) |
| Octal | 0o36015016 |
| Hexadecimal | 0x781A0E |
Divisor Catalog (5 of 8)
Collatz Trajectory (147 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.