9,879,280

2⁴ × 5 × 123491

Starting at 9,879,280, the Collatz iteration reaches 1 after 119 steps. The first transition is 4939640; the starting value is even with 20 positive divisors.

Prime Factor Structure

Factorization String 2^4 × 5 × 123491

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 22,969,512

Proper Divisor Sum 13,090,232

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #9879277 ← → #9879281

Radix Representation

Decimal	9879280
Binary	100101101011111011110000 (24 bits)
Octal	0o45537360
Hexadecimal	0x96BEF0

Divisor Catalog (20)

1 2 4 5 8 10 16 20 40 80 123,491 246,982 493,964 617,455 987,928 1,234,910 1,975,856 2,469,820 4,939,640 9,879,280

Collatz Trajectory (119 steps to reach 1)

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

9,879,280 4,939,640 2,469,820 1,234,910 617,455 1,852,366 926,183 2,778,550 1,389,275 4,167,826 2,083,913 6,251,740 3,125,870 1,562,935 4,688,806 2,344,403 7,033,210 3,516,605 10,549,816 5,274,908 2,637,454 1,318,727 3,956,182 1,978,091 5,934,274 2,967,137 8,901,412 4,450,706 2,225,353 6,676,060 3,338,030 1,669,015 5,007,046 2,503,523 7,510,570 3,755,285 11,265,856 5,632,928 2,816,464 1,408,232 704,116 352,058 176,029 528,088 264,044 132,022 66,011 198,034 99,017 297,052 148,526 74,263 222,790 111,395 334,186 167,093 501,280 250,640 125,320 62,660

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