λ
Sequence Observatory

1,253,194

2 × 626597
Deficient Even Composite

Starting at 1,253,194, the Collatz iteration reaches 1 after 111 steps. The first transition is 626597; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 626597
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,879,794
Proper Divisor Sum 626,600
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #1253171 ← → #1253249

Radix Representation

Decimal 1253194
Binary 100110001111101001010 (21 bits)
Octal 0o4617512
Hexadecimal 0x131F4A

Divisor Catalog (4)

1 2 626,597 1,253,194

Collatz Trajectory (111 steps to reach 1)

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

1,253,194 626,597 1,879,792 939,896 469,948 234,974 117,487 352,462 176,231 528,694 264,347 793,042 396,521 1,189,564 594,782 297,391 892,174 446,087 1,338,262 669,131 2,007,394 1,003,697 3,011,092 1,505,546 752,773 2,258,320 1,129,160 564,580 282,290 141,145 423,436 211,718 105,859 317,578 158,789 476,368 238,184 119,092 59,546 29,773 89,320 44,660 22,330 11,165 33,496 16,748 8,374 4,187 12,562 6,281 18,844 9,422 4,711 14,134 7,067 21,202 10,601 31,804 15,902 7,951

More profiles

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