λ
Sequence Observatory

1,547,345

5 × 309469
Deficient Odd Composite

Starting at 1,547,345, the Collatz iteration reaches 1 after 101 steps. The first transition is 4642036; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 309469
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,856,820
Proper Divisor Sum 309,475
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #1547339 ← → #1547347

Radix Representation

Decimal 1547345
Binary 101111001110001010001 (21 bits)
Octal 0o5716121
Hexadecimal 0x179C51

Divisor Catalog (4)

1 5 309,469 1,547,345

Collatz Trajectory (101 steps to reach 1)

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

1,547,345 4,642,036 2,321,018 1,160,509 3,481,528 1,740,764 870,382 435,191 1,305,574 652,787 1,958,362 979,181 2,937,544 1,468,772 734,386 367,193 1,101,580 550,790 275,395 826,186 413,093 1,239,280 619,640 309,820 154,910 77,455 232,366 116,183 348,550 174,275 522,826 261,413 784,240 392,120 196,060 98,030 49,015 147,046 73,523 220,570 110,285 330,856 165,428 82,714 41,357 124,072 62,036 31,018 15,509 46,528 23,264 11,632 5,816 2,908 1,454 727 2,182 1,091 3,274 1,637

More profiles

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