λ
Sequence Observatory
Atlas › Integer Profiles › Node 1,826,218

1,826,218

2 × 61 × 14969
Deficient Even Composite

Starting at 1,826,218, the Collatz iteration reaches 1 after 57 steps. The first transition is 913109; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 61 × 14969
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,784,420
Proper Divisor Sum 958,202
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1826207 ← → #1826239

Radix Representation

Decimal 1826218
Binary 110111101110110101010 (21 bits)
Octal 0o6756652
Hexadecimal 0x1BDDAA

Divisor Catalog (8)

1 2 61 122 14,969 29,938 913,109 1,826,218

Collatz Trajectory (57 steps to reach 1)

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

1,826,218 913,109 2,739,328 1,369,664 684,832 342,416 171,208 85,604 42,802 21,401 64,204 32,102 16,051 48,154 24,077 72,232 36,116 18,058 9,029 27,088 13,544 6,772 3,386 1,693 5,080 2,540 1,270 635 1,906 953 2,860 1,430 715 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682 341 1,024 512 256 128 64 32 16 8 4 2 1

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