λ
Sequence Observatory

231,450

2 × 3 × 52 × 1543
Abundant Even Composite

Starting at 231,450, the Collatz iteration reaches 1 after 168 steps. The first transition is 115725; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 5^2 × 1543
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 574,368
Proper Divisor Sum 342,918
Digit Sum / Digital Root 15 (Root: 6)
Adjacent Primes #231443 ← → #231461

Radix Representation

Decimal 231450
Binary 111000100000011010 (18 bits)
Octal 0o704032
Hexadecimal 0x3881A

Divisor Catalog (24)

1 2 3 5 6 10 15 25 30 50 75 150 1,543 3,086 4,629 7,715 9,258 15,430 23,145 38,575 46,290 77,150 115,725 231,450

Collatz Trajectory (168 steps to reach 1)

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

231,450 115,725 347,176 173,588 86,794 43,397 130,192 65,096 32,548 16,274 8,137 24,412 12,206 6,103 18,310 9,155 27,466 13,733 41,200 20,600 10,300 5,150 2,575 7,726 3,863 11,590 5,795 17,386 8,693 26,080 13,040 6,520 3,260 1,630 815 2,446 1,223 3,670 1,835 5,506 2,753 8,260 4,130 2,065 6,196 3,098 1,549 4,648 2,324 1,162 581 1,744 872 436 218 109 328 164 82 41

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