2,742,386

2 × 1371193

Starting at 2,742,386, the Collatz iteration reaches 1 after 81 steps. The first transition is 1371193; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1371193

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,113,582

Proper Divisor Sum 1,371,196

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #2742371 ← → #2742407

Radix Representation

Decimal	2742386
Binary	1010011101100001110010 (22 bits)
Octal	0o12354162
Hexadecimal	0x29D872

Divisor Catalog (4)

1 2 1,371,193 2,742,386

Collatz Trajectory (81 steps to reach 1)

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

2,742,386 1,371,193 4,113,580 2,056,790 1,028,395 3,085,186 1,542,593 4,627,780 2,313,890 1,156,945 3,470,836 1,735,418 867,709 2,603,128 1,301,564 650,782 325,391 976,174 488,087 1,464,262 732,131 2,196,394 1,098,197 3,294,592 1,647,296 823,648 411,824 205,912 102,956 51,478 25,739 77,218 38,609 115,828 57,914 28,957 86,872 43,436 21,718 10,859 32,578 16,289 48,868 24,434 12,217 36,652 18,326 9,163 27,490 13,745 41,236 20,618 10,309 30,928 15,464 7,732 3,866 1,933 5,800 2,900

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