1,871,778

2 × 3 × 311963

Starting at 1,871,778, the Collatz iteration reaches 1 after 52 steps. The first transition is 935889; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 311963

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,743,568

Proper Divisor Sum 1,871,790

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #1871777 ← → #1871783

Radix Representation

Decimal	1871778
Binary	111001000111110100010 (21 bits)
Octal	0o7107642
Hexadecimal	0x1C8FA2

Divisor Catalog (8)

1 2 3 6 311,963 623,926 935,889 1,871,778

Collatz Trajectory (52 steps to reach 1)

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

1,871,778 935,889 2,807,668 1,403,834 701,917 2,105,752 1,052,876 526,438 263,219 789,658 394,829 1,184,488 592,244 296,122 148,061 444,184 222,092 111,046 55,523 166,570 83,285 249,856 124,928 62,464 31,232 15,616 7,808 3,904 1,952 976 488 244 122 61 184 92 46 23 70 35 106 53 160 80 40 20 10 5 16 8 4 2 1

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