λ
Sequence Observatory

1,189,252

22 × 17 × 17489
Deficient Even Composite

Starting at 1,189,252, the Collatz iteration reaches 1 after 173 steps. The first transition is 594626; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 17 × 17489
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,203,740
Proper Divisor Sum 1,014,488
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1189231 ← → #1189271

Radix Representation

Decimal 1189252
Binary 100100010010110000100 (21 bits)
Octal 0o4422604
Hexadecimal 0x122584

Divisor Catalog (12)

1 2 4 17 34 68 17,489 34,978 69,956 297,313 594,626 1,189,252

Collatz Trajectory (173 steps to reach 1)

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

1,189,252 594,626 297,313 891,940 445,970 222,985 668,956 334,478 167,239 501,718 250,859 752,578 376,289 1,128,868 564,434 282,217 846,652 423,326 211,663 634,990 317,495 952,486 476,243 1,428,730 714,365 2,143,096 1,071,548 535,774 267,887 803,662 401,831 1,205,494 602,747 1,808,242 904,121 2,712,364 1,356,182 678,091 2,034,274 1,017,137 3,051,412 1,525,706 762,853 2,288,560 1,144,280 572,140 286,070 143,035 429,106 214,553 643,660 321,830 160,915 482,746 241,373 724,120 362,060 181,030 90,515 271,546

More profiles

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