1,625,143

13 × 149 × 839

Starting at 1,625,143, the Collatz iteration reaches 1 after 62 steps. The first transition is 4875430; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 13 × 149 × 839

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,764,000

Proper Divisor Sum 138,857

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #1625123 ← → #1625147

Radix Representation

Decimal	1625143
Binary	110001100110000110111 (21 bits)
Octal	0o6146067
Hexadecimal	0x18CC37

Divisor Catalog (8)

1 13 149 839 1,937 10,907 125,011 1,625,143

Collatz Trajectory (62 steps to reach 1)

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

1,625,143 4,875,430 2,437,715 7,313,146 3,656,573 10,969,720 5,484,860 2,742,430 1,371,215 4,113,646 2,056,823 6,170,470 3,085,235 9,255,706 4,627,853 13,883,560 6,941,780 3,470,890 1,735,445 5,206,336 2,603,168 1,301,584 650,792 325,396 162,698 81,349 244,048 122,024 61,012 30,506 15,253 45,760 22,880 11,440 5,720 2,860 1,430 715 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682 341 1,024 512 256 128 64 32 16 8

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