9,987,964
22 × 72 × 131 × 389
Abundant
Even
Composite
9,987,964 has digital root 7. The neighboring primes are 9987961 and 9987973; its proper-divisor sum differs from the starting integer by 564,592.
Resources
Prime Factor Structure
Factorization String
2^2 × 7^2 × 131 × 389
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
36
Divisor Sum (σ)
20,540,520
Proper Divisor Sum
10,552,556
Digit Sum / Digital Root
52 (Root: 7)
Adjacent Primes
#9987961 ← → #9987973
Radix Representation
| Decimal | 9987964 |
| Binary | 100110000110011101111100 (24 bits) |
| Octal | 0o46063574 |
| Hexadecimal | 0x98677C |
Divisor Catalog (5 of 36)
Collatz Trajectory (163 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.