1,787,986

2 × 83 × 10771

Starting at 1,787,986, the Collatz iteration reaches 1 after 145 steps. The first transition is 893993; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 83 × 10771

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,714,544

Proper Divisor Sum 926,558

Digit Sum / Digital Root 46 (Root: 1)

Adjacent Primes #1787953 ← → #1788011

Radix Representation

Decimal	1787986
Binary	110110100100001010010 (21 bits)
Octal	0o6644122
Hexadecimal	0x1B4852

Divisor Catalog (8)

1 2 83 166 10,771 21,542 893,993 1,787,986

Collatz Trajectory (145 steps to reach 1)

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

1,787,986 893,993 2,681,980 1,340,990 670,495 2,011,486 1,005,743 3,017,230 1,508,615 4,525,846 2,262,923 6,788,770 3,394,385 10,183,156 5,091,578 2,545,789 7,637,368 3,818,684 1,909,342 954,671 2,864,014 1,432,007 4,296,022 2,148,011 6,444,034 3,222,017 9,666,052 4,833,026 2,416,513 7,249,540 3,624,770 1,812,385 5,437,156 2,718,578 1,359,289 4,077,868 2,038,934 1,019,467 3,058,402 1,529,201 4,587,604 2,293,802 1,146,901 3,440,704 1,720,352 860,176 430,088 215,044 107,522 53,761 161,284 80,642 40,321 120,964 60,482 30,241 90,724 45,362 22,681 68,044

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