λ
Sigma Notebook

3,666,657

3 × 1222219
Deficient Odd Composite

3,666,657 is odd and not a perfect square. Its factorization is 3 × 1222219 and its 4 divisors sum to 4,888,880.

Prime Factor Structure

Factorization String 3 × 1222219
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 4,888,880
Proper Divisor Sum 1,222,223
Digit Sum / Digital Root 39 (Root: 3)
Adjacent Primes #3666647 ← → #3666659

Radix Representation

Decimal 3666657
Binary 1101111111001011100001 (22 bits)
Octal 0o15771341
Hexadecimal 0x37F2E1

Divisor Catalog (4)

1 3 1,222,219 3,666,657

Collatz Trajectory (265 steps to reach 1)

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

3,666,657 10,999,972 5,499,986 2,749,993 8,249,980 4,124,990 2,062,495 6,187,486 3,093,743 9,281,230 4,640,615 13,921,846 6,960,923 20,882,770 10,441,385 31,324,156 15,662,078 7,831,039 23,493,118 11,746,559 35,239,678 17,619,839 52,859,518 26,429,759 79,289,278 39,644,639 118,933,918 59,466,959 178,400,878 89,200,439 267,601,318 133,800,659 401,401,978 200,700,989 602,102,968 301,051,484 150,525,742 75,262,871 225,788,614 112,894,307 338,682,922 169,341,461 508,024,384 254,012,192 127,006,096 63,503,048 31,751,524 15,875,762 7,937,881 23,813,644 11,906,822 5,953,411 17,860,234 8,930,117 26,790,352 13,395,176 6,697,588 3,348,794 1,674,397 5,023,192

More profiles

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