1,815,894

2 × 3² × 79 × 1277

1,815,894 factors as 2 × 3^2 × 79 × 1277. Its 24 positive divisors give a proper-divisor sum of 2,171,466, so this integer is abundant. The Collatz stopping time is 109 steps.

Prime Factor Structure

Factorization String 2 × 3^2 × 79 × 1277

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 3,987,360

Proper Divisor Sum 2,171,466

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #1815883 ← → #1815899

Radix Representation

Decimal	1815894
Binary	110111011010101010110 (21 bits)
Octal	0o6732526
Hexadecimal	0x1BB556

Divisor Catalog (24)

Collatz Trajectory (109 steps to reach 1)

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

1,815,894 907,947 2,723,842 1,361,921 4,085,764 2,042,882 1,021,441 3,064,324 1,532,162 766,081 2,298,244 1,149,122 574,561 1,723,684 861,842 430,921 1,292,764 646,382 323,191 969,574 484,787 1,454,362 727,181 2,181,544 1,090,772 545,386 272,693 818,080 409,040 204,520 102,260 51,130 25,565 76,696 38,348 19,174 9,587 28,762 14,381 43,144 21,572 10,786 5,393 16,180 8,090 4,045 12,136 6,068 3,034 1,517 4,552 2,276 1,138 569 1,708 854 427 1,282 641 1,924

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