1,817,988

2² × 3 × 151499

1,817,988 factors as 2^2 × 3 × 151499. Its 12 positive divisors give a proper-divisor sum of 2,424,012, so this integer is abundant. The Collatz stopping time is 109 steps.

Prime Factor Structure

Factorization String 2^2 × 3 × 151499

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 4,242,000

Proper Divisor Sum 2,424,012

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #1817987 ← → #1817999

Radix Representation

Decimal	1817988
Binary	110111011110110000100 (21 bits)
Octal	0o6736604
Hexadecimal	0x1BBD84

Divisor Catalog (12)

1 2 3 4 6 12 151,499 302,998 454,497 605,996 908,994 1,817,988

Collatz Trajectory (109 steps to reach 1)

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

1,817,988 908,994 454,497 1,363,492 681,746 340,873 1,022,620 511,310 255,655 766,966 383,483 1,150,450 575,225 1,725,676 862,838 431,419 1,294,258 647,129 1,941,388 970,694 485,347 1,456,042 728,021 2,184,064 1,092,032 546,016 273,008 136,504 68,252 34,126 17,063 51,190 25,595 76,786 38,393 115,180 57,590 28,795 86,386 43,193 129,580 64,790 32,395 97,186 48,593 145,780 72,890 36,445 109,336 54,668 27,334 13,667 41,002 20,501 61,504 30,752 15,376 7,688 3,844 1,922

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