1,286,049

3 × 428683

Starting at 1,286,049, the Collatz iteration reaches 1 after 72 steps. The first transition is 3858148; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 428683

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,714,736

Proper Divisor Sum 428,687

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1286039 ← → #1286071

Radix Representation

Decimal	1286049
Binary	100111001111110100001 (21 bits)
Octal	0o4717641
Hexadecimal	0x139FA1

Divisor Catalog (4)

1 3 428,683 1,286,049

Collatz Trajectory (72 steps to reach 1)

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

1,286,049 3,858,148 1,929,074 964,537 2,893,612 1,446,806 723,403 2,170,210 1,085,105 3,255,316 1,627,658 813,829 2,441,488 1,220,744 610,372 305,186 152,593 457,780 228,890 114,445 343,336 171,668 85,834 42,917 128,752 64,376 32,188 16,094 8,047 24,142 12,071 36,214 18,107 54,322 27,161 81,484 40,742 20,371 61,114 30,557 91,672 45,836 22,918 11,459 34,378 17,189 51,568 25,784 12,892 6,446 3,223 9,670 4,835 14,506 7,253 21,760 10,880 5,440 2,720 1,360

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