1,671,189

3 × 13 × 73 × 587

Starting at 1,671,189, the Collatz iteration reaches 1 after 83 steps. The first transition is 5013568; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 13 × 73 × 587

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,436,672

Proper Divisor Sum 765,483

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #1671161 ← → #1671191

Radix Representation

Decimal	1671189
Binary	110011000000000010101 (21 bits)
Octal	0o6300025
Hexadecimal	0x198015

Divisor Catalog (16)

1 3 13 39 73 219 587 949 1,761 2,847 7,631 22,893 42,851 128,553 557,063 1,671,189

Collatz Trajectory (83 steps to reach 1)

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

1,671,189 5,013,568 2,506,784 1,253,392 626,696 313,348 156,674 78,337 235,012 117,506 58,753 176,260 88,130 44,065 132,196 66,098 33,049 99,148 49,574 24,787 74,362 37,181 111,544 55,772 27,886 13,943 41,830 20,915 62,746 31,373 94,120 47,060 23,530 11,765 35,296 17,648 8,824 4,412 2,206 1,103 3,310 1,655 4,966 2,483 7,450 3,725 11,176 5,588 2,794 1,397 4,192 2,096 1,048 524 262 131 394 197 592 296

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