1,211,022

2 × 3² × 19 × 3541

Starting at 1,211,022, the Collatz iteration reaches 1 after 204 steps. The first transition is 605511; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 3^2 × 19 × 3541

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 2,762,760

Proper Divisor Sum 1,551,738

Digit Sum / Digital Root 9 (Root: 9)

Adjacent Primes #1210999 ← → #1211027

Radix Representation

Decimal	1211022
Binary	100100111101010001110 (21 bits)
Octal	0o4475216
Hexadecimal	0x127A8E

Divisor Catalog (24)

1 2 3 6 9 18 19 38 57 114 171 342 3,541 7,082 10,623 21,246 31,869 63,738 67,279 134,558 201,837 403,674 605,511 1,211,022

Collatz Trajectory (204 steps to reach 1)

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

1,211,022 605,511 1,816,534 908,267 2,724,802 1,362,401 4,087,204 2,043,602 1,021,801 3,065,404 1,532,702 766,351 2,299,054 1,149,527 3,448,582 1,724,291 5,172,874 2,586,437 7,759,312 3,879,656 1,939,828 969,914 484,957 1,454,872 727,436 363,718 181,859 545,578 272,789 818,368 409,184 204,592 102,296 51,148 25,574 12,787 38,362 19,181 57,544 28,772 14,386 7,193 21,580 10,790 5,395 16,186 8,093 24,280 12,140 6,070 3,035 9,106 4,553 13,660 6,830 3,415 10,246 5,123 15,370 7,685

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