λ
Sequence Observatory

2,619,574

2 × 107 × 12241
Deficient Even Composite

Starting at 2,619,574, the Collatz iteration reaches 1 after 156 steps. The first transition is 1309787; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 107 × 12241
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,966,408
Proper Divisor Sum 1,346,834
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #2619559 ← → #2619611

Radix Representation

Decimal 2619574
Binary 1001111111100010110110 (22 bits)
Octal 0o11774266
Hexadecimal 0x27F8B6

Divisor Catalog (8)

1 2 107 214 12,241 24,482 1,309,787 2,619,574

Collatz Trajectory (156 steps to reach 1)

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

2,619,574 1,309,787 3,929,362 1,964,681 5,894,044 2,947,022 1,473,511 4,420,534 2,210,267 6,630,802 3,315,401 9,946,204 4,973,102 2,486,551 7,459,654 3,729,827 11,189,482 5,594,741 16,784,224 8,392,112 4,196,056 2,098,028 1,049,014 524,507 1,573,522 786,761 2,360,284 1,180,142 590,071 1,770,214 885,107 2,655,322 1,327,661 3,982,984 1,991,492 995,746 497,873 1,493,620 746,810 373,405 1,120,216 560,108 280,054 140,027 420,082 210,041 630,124 315,062 157,531 472,594 236,297 708,892 354,446 177,223 531,670 265,835 797,506 398,753 1,196,260 598,130

More profiles

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