λ
Sequence Observatory

9,978,328

23 × 1247291
Deficient Even Composite

Starting at 9,978,328, the Collatz iteration reaches 1 after 357 steps. The first transition is 4989164; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 1247291
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 18,709,380
Proper Divisor Sum 8,731,052
Digit Sum / Digital Root 46 (Root: 1)
Adjacent Primes #9978323 ← → #9978341

Radix Representation

Decimal 9978328
Binary 100110000100000111011000 (24 bits)
Octal 0o46040730
Hexadecimal 0x9841D8

Divisor Catalog (8)

1 2 4 8 1,247,291 2,494,582 4,989,164 9,978,328

Collatz Trajectory (357 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

9,978,328 4,989,164 2,494,582 1,247,291 3,741,874 1,870,937 5,612,812 2,806,406 1,403,203 4,209,610 2,104,805 6,314,416 3,157,208 1,578,604 789,302 394,651 1,183,954 591,977 1,775,932 887,966 443,983 1,331,950 665,975 1,997,926 998,963 2,996,890 1,498,445 4,495,336 2,247,668 1,123,834 561,917 1,685,752 842,876 421,438 210,719 632,158 316,079 948,238 474,119 1,422,358 711,179 2,133,538 1,066,769 3,200,308 1,600,154 800,077 2,400,232 1,200,116 600,058 300,029 900,088 450,044 225,022 112,511 337,534 168,767 506,302 253,151 759,454 379,727

More profiles

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