1,815,489

3² × 13 × 59 × 263

1,815,489 factors as 3^2 × 13 × 59 × 263. Its 24 positive divisors give a proper-divisor sum of 1,067,391, so this integer is deficient. The Collatz stopping time is 171 steps.

Prime Factor Structure

Factorization String 3^2 × 13 × 59 × 263

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 2,882,880

Proper Divisor Sum 1,067,391

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #1815467 ← → #1815491

Radix Representation

Decimal	1815489
Binary	110111011001111000001 (21 bits)
Octal	0o6731701
Hexadecimal	0x1BB3C1

Divisor Catalog (24)

Collatz Trajectory (171 steps to reach 1)

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

1,815,489 5,446,468 2,723,234 1,361,617 4,084,852 2,042,426 1,021,213 3,063,640 1,531,820 765,910 382,955 1,148,866 574,433 1,723,300 861,650 430,825 1,292,476 646,238 323,119 969,358 484,679 1,454,038 727,019 2,181,058 1,090,529 3,271,588 1,635,794 817,897 2,453,692 1,226,846 613,423 1,840,270 920,135 2,760,406 1,380,203 4,140,610 2,070,305 6,210,916 3,105,458 1,552,729 4,658,188 2,329,094 1,164,547 3,493,642 1,746,821 5,240,464 2,620,232 1,310,116 655,058 327,529 982,588 491,294 245,647 736,942 368,471 1,105,414 552,707 1,658,122 829,061 2,487,184

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