1,245,585

3 × 5 × 11 × 7549

Starting at 1,245,585, the Collatz iteration reaches 1 after 173 steps. The first transition is 3736756; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 5 × 11 × 7549

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,174,400

Proper Divisor Sum 928,815

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1245557 ← → #1245589

Radix Representation

Decimal	1245585
Binary	100110000000110010001 (21 bits)
Octal	0o4600621
Hexadecimal	0x130191

Divisor Catalog (16)

1 3 5 11 15 33 55 165 7,549 22,647 37,745 83,039 113,235 249,117 415,195 1,245,585

Collatz Trajectory (173 steps to reach 1)

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

1,245,585 3,736,756 1,868,378 934,189 2,802,568 1,401,284 700,642 350,321 1,050,964 525,482 262,741 788,224 394,112 197,056 98,528 49,264 24,632 12,316 6,158 3,079 9,238 4,619 13,858 6,929 20,788 10,394 5,197 15,592 7,796 3,898 1,949 5,848 2,924 1,462 731 2,194 1,097 3,292 1,646 823 2,470 1,235 3,706 1,853 5,560 2,780 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881 2,644 1,322

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