1,247,250

2 × 3 × 5³ × 1663

Starting at 1,247,250, the Collatz iteration reaches 1 after 173 steps. The first transition is 623625; the starting value is even with 32 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 5^3 × 1663

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 3,115,008

Proper Divisor Sum 1,867,758

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1247243 ← → #1247263

Radix Representation

Decimal	1247250
Binary	100110000100000010010 (21 bits)
Octal	0o4604022
Hexadecimal	0x130812

Divisor Catalog (32)

1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 1,663 3,326 4,989 8,315 9,978 16,630 24,945 41,575 49,890 83,150 124,725 207,875 249,450 415,750 623,625 1,247,250

Collatz Trajectory (173 steps to reach 1)

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

1,247,250 623,625 1,870,876 935,438 467,719 1,403,158 701,579 2,104,738 1,052,369 3,157,108 1,578,554 789,277 2,367,832 1,183,916 591,958 295,979 887,938 443,969 1,331,908 665,954 332,977 998,932 499,466 249,733 749,200 374,600 187,300 93,650 46,825 140,476 70,238 35,119 105,358 52,679 158,038 79,019 237,058 118,529 355,588 177,794 88,897 266,692 133,346 66,673 200,020 100,010 50,005 150,016 75,008 37,504 18,752 9,376 4,688 2,344 1,172 586 293 880 440 220

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