1,020,561

3 × 17 × 20011

1,020,561 factors as 3 × 17 × 20011. Its 8 positive divisors give a proper-divisor sum of 420,303, so this integer is deficient. The Collatz stopping time is 152 steps.

Prime Factor Structure

Factorization String 3 × 17 × 20011

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,440,864

Proper Divisor Sum 420,303

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #1020557 ← → #1020583

Radix Representation

Decimal	1020561
Binary	11111001001010010001 (20 bits)
Octal	0o3711221
Hexadecimal	0xF9291

Divisor Catalog (8)

1 3 17 51 20,011 60,033 340,187 1,020,561

Collatz Trajectory (152 steps to reach 1)

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

1,020,561 3,061,684 1,530,842 765,421 2,296,264 1,148,132 574,066 287,033 861,100 430,550 215,275 645,826 322,913 968,740 484,370 242,185 726,556 363,278 181,639 544,918 272,459 817,378 408,689 1,226,068 613,034 306,517 919,552 459,776 229,888 114,944 57,472 28,736 14,368 7,184 3,592 1,796 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182

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