2,208,806

2 × 1104403

Starting at 2,208,806, the Collatz iteration reaches 1 after 73 steps. The first transition is 1104403; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1104403

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,313,212

Proper Divisor Sum 1,104,406

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #2208803 ← → #2208809

Radix Representation

Decimal	2208806
Binary	1000011011010000100110 (22 bits)
Octal	0o10332046
Hexadecimal	0x21B426

Divisor Catalog (4)

1 2 1,104,403 2,208,806

Collatz Trajectory (73 steps to reach 1)

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

2,208,806 1,104,403 3,313,210 1,656,605 4,969,816 2,484,908 1,242,454 621,227 1,863,682 931,841 2,795,524 1,397,762 698,881 2,096,644 1,048,322 524,161 1,572,484 786,242 393,121 1,179,364 589,682 294,841 884,524 442,262 221,131 663,394 331,697 995,092 497,546 248,773 746,320 373,160 186,580 93,290 46,645 139,936 69,968 34,984 17,492 8,746 4,373 13,120 6,560 3,280 1,640 820 410 205 616 308 154 77 232 116 58 29 88 44 22 11

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