λ
Sequence Observatory

2,112,306

2 × 3 × 7 × 19 × 2647
Abundant Even Composite

Starting at 2,112,306, the Collatz iteration reaches 1 after 197 steps. The first transition is 1056153; the starting value is even with 32 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 7 × 19 × 2647
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 5,084,160
Proper Divisor Sum 2,971,854
Digit Sum / Digital Root 15 (Root: 6)
Adjacent Primes #2112263 ← → #2112307

Radix Representation

Decimal 2112306
Binary 1000000011101100110010 (22 bits)
Octal 0o10035462
Hexadecimal 0x203B32

Divisor Catalog (32)

1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 2,647 5,294 7,941 15,882 18,529 37,058 50,293 55,587 100,586 111,174 150,879 301,758 352,051 704,102 1,056,153 2,112,306

Collatz Trajectory (197 steps to reach 1)

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

2,112,306 1,056,153 3,168,460 1,584,230 792,115 2,376,346 1,188,173 3,564,520 1,782,260 891,130 445,565 1,336,696 668,348 334,174 167,087 501,262 250,631 751,894 375,947 1,127,842 563,921 1,691,764 845,882 422,941 1,268,824 634,412 317,206 158,603 475,810 237,905 713,716 356,858 178,429 535,288 267,644 133,822 66,911 200,734 100,367 301,102 150,551 451,654 225,827 677,482 338,741 1,016,224 508,112 254,056 127,028 63,514 31,757 95,272 47,636 23,818 11,909 35,728 17,864 8,932 4,466 2,233

More profiles

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