λ
Sequence Observatory

3,557,379

3 × 7 × 169399
Deficient Odd Composite

Starting at 3,557,379, the Collatz iteration reaches 1 after 97 steps. The first transition is 10672138; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 7 × 169399
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 5,420,800
Proper Divisor Sum 1,863,421
Digit Sum / Digital Root 39 (Root: 3)
Adjacent Primes #3557377 ← → #3557381

Radix Representation

Decimal 3557379
Binary 1101100100100000000011 (22 bits)
Octal 0o15444003
Hexadecimal 0x364803

Divisor Catalog (8)

1 3 7 21 169,399 508,197 1,185,793 3,557,379

Collatz Trajectory (97 steps to reach 1)

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

3,557,379 10,672,138 5,336,069 16,008,208 8,004,104 4,002,052 2,001,026 1,000,513 3,001,540 1,500,770 750,385 2,251,156 1,125,578 562,789 1,688,368 844,184 422,092 211,046 105,523 316,570 158,285 474,856 237,428 118,714 59,357 178,072 89,036 44,518 22,259 66,778 33,389 100,168 50,084 25,042 12,521 37,564 18,782 9,391 28,174 14,087 42,262 21,131 63,394 31,697 95,092 47,546 23,773 71,320 35,660 17,830 8,915 26,746 13,373 40,120 20,060 10,030 5,015 15,046 7,523 22,570

More profiles

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