2,666,170

2 × 5 × 13 × 20509

2,666,170 factors as 2 × 5 × 13 × 20509. Its 16 positive divisors give a proper-divisor sum of 2,502,350, so this integer is deficient. The Collatz stopping time is 174 steps.

Prime Factor Structure

Factorization String 2 × 5 × 13 × 20509

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,168,520

Proper Divisor Sum 2,502,350

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #2666141 ← → #2666177

Radix Representation

Decimal	2666170
Binary	1010001010111010111010 (22 bits)
Octal	0o12127272
Hexadecimal	0x28AEBA

Divisor Catalog (16)

1 2 5 10 13 26 65 130 20,509 41,018 102,545 205,090 266,617 533,234 1,333,085 2,666,170

Collatz Trajectory (174 steps to reach 1)

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

2,666,170 1,333,085 3,999,256 1,999,628 999,814 499,907 1,499,722 749,861 2,249,584 1,124,792 562,396 281,198 140,599 421,798 210,899 632,698 316,349 949,048 474,524 237,262 118,631 355,894 177,947 533,842 266,921 800,764 400,382 200,191 600,574 300,287 900,862 450,431 1,351,294 675,647 2,026,942 1,013,471 3,040,414 1,520,207 4,560,622 2,280,311 6,840,934 3,420,467 10,261,402 5,130,701 15,392,104 7,696,052 3,848,026 1,924,013 5,772,040 2,886,020 1,443,010 721,505 2,164,516 1,082,258 541,129 1,623,388 811,694 405,847 1,217,542 608,771

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