3,940,221

3 × 661 × 1987

3,940,221 factors as 3 × 661 × 1987. Its 8 positive divisors give a proper-divisor sum of 1,324,003, so this integer is deficient. The Collatz stopping time is 198 steps.

Prime Factor Structure

Factorization String 3 × 661 × 1987

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 5,264,224

Proper Divisor Sum 1,324,003

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #3940217 ← → #3940231

Radix Representation

Decimal	3940221
Binary	1111000001111101111101 (22 bits)
Octal	0o17017575
Hexadecimal	0x3C1F7D

Divisor Catalog (8)

1 3 661 1,983 1,987 5,961 1,313,407 3,940,221

Collatz Trajectory (198 steps to reach 1)

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

3,940,221 11,820,664 5,910,332 2,955,166 1,477,583 4,432,750 2,216,375 6,649,126 3,324,563 9,973,690 4,986,845 14,960,536 7,480,268 3,740,134 1,870,067 5,610,202 2,805,101 8,415,304 4,207,652 2,103,826 1,051,913 3,155,740 1,577,870 788,935 2,366,806 1,183,403 3,550,210 1,775,105 5,325,316 2,662,658 1,331,329 3,993,988 1,996,994 998,497 2,995,492 1,497,746 748,873 2,246,620 1,123,310 561,655 1,684,966 842,483 2,527,450 1,263,725 3,791,176 1,895,588 947,794 473,897 1,421,692 710,846 355,423 1,066,270 533,135 1,599,406 799,703 2,399,110 1,199,555 3,598,666 1,799,333 5,398,000

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