1,481,830

2 × 5 × 7 × 21169

Starting at 1,481,830, the Collatz iteration reaches 1 after 181 steps. The first transition is 740915; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 7 × 21169

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,048,480

Proper Divisor Sum 1,566,650

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1481819 ← → #1481849

Radix Representation

Decimal	1481830
Binary	101101001110001100110 (21 bits)
Octal	0o5516146
Hexadecimal	0x169C66

Divisor Catalog (16)

1 2 5 7 10 14 35 70 21,169 42,338 105,845 148,183 211,690 296,366 740,915 1,481,830

Collatz Trajectory (181 steps to reach 1)

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

1,481,830 740,915 2,222,746 1,111,373 3,334,120 1,667,060 833,530 416,765 1,250,296 625,148 312,574 156,287 468,862 234,431 703,294 351,647 1,054,942 527,471 1,582,414 791,207 2,373,622 1,186,811 3,560,434 1,780,217 5,340,652 2,670,326 1,335,163 4,005,490 2,002,745 6,008,236 3,004,118 1,502,059 4,506,178 2,253,089 6,759,268 3,379,634 1,689,817 5,069,452 2,534,726 1,267,363 3,802,090 1,901,045 5,703,136 2,851,568 1,425,784 712,892 356,446 178,223 534,670 267,335 802,006 401,003 1,203,010 601,505 1,804,516 902,258 451,129 1,353,388 676,694 338,347

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