1,293,861

3 × 431287

Starting at 1,293,861, the Collatz iteration reaches 1 after 124 steps. The first transition is 3881584; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 431287

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,725,152

Proper Divisor Sum 431,291

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1293857 ← → #1293869

Radix Representation

Decimal	1293861
Binary	100111011111000100101 (21 bits)
Octal	0o4737045
Hexadecimal	0x13BE25

Divisor Catalog (4)

1 3 431,287 1,293,861

Collatz Trajectory (124 steps to reach 1)

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

1,293,861 3,881,584 1,940,792 970,396 485,198 242,599 727,798 363,899 1,091,698 545,849 1,637,548 818,774 409,387 1,228,162 614,081 1,842,244 921,122 460,561 1,381,684 690,842 345,421 1,036,264 518,132 259,066 129,533 388,600 194,300 97,150 48,575 145,726 72,863 218,590 109,295 327,886 163,943 491,830 245,915 737,746 368,873 1,106,620 553,310 276,655 829,966 414,983 1,244,950 622,475 1,867,426 933,713 2,801,140 1,400,570 700,285 2,100,856 1,050,428 525,214 262,607 787,822 393,911 1,181,734 590,867 1,772,602

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