1,888,721

347 × 5443

Starting at 1,888,721, the Collatz iteration reaches 1 after 52 steps. The first transition is 5666164; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 347 × 5443

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,894,512

Proper Divisor Sum 5,791

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1888673 ← → #1888723

Radix Representation

Decimal	1888721
Binary	111001101000111010001 (21 bits)
Octal	0o7150721
Hexadecimal	0x1CD1D1

Divisor Catalog (4)

1 347 5,443 1,888,721

Collatz Trajectory (52 steps to reach 1)

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

1,888,721 5,666,164 2,833,082 1,416,541 4,249,624 2,124,812 1,062,406 531,203 1,593,610 796,805 2,390,416 1,195,208 597,604 298,802 149,401 448,204 224,102 112,051 336,154 168,077 504,232 252,116 126,058 63,029 189,088 94,544 47,272 23,636 11,818 5,909 17,728 8,864 4,432 2,216 1,108 554 277 832 416 208 104 52 26 13 40 20 10 5 16 8 4 2 1

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