3,977,571

3 × 13 × 79 × 1291

3,977,571 factors as 3 × 13 × 79 × 1291. Its 16 positive divisors give a proper-divisor sum of 1,810,589, so this integer is deficient. The Collatz stopping time is 154 steps.

Prime Factor Structure

Factorization String 3 × 13 × 79 × 1291

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,788,160

Proper Divisor Sum 1,810,589

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #3977569 ← → #3977573

Radix Representation

Decimal	3977571
Binary	1111001011000101100011 (22 bits)
Octal	0o17130543
Hexadecimal	0x3CB163

Divisor Catalog (16)

1 3 13 39 79 237 1,027 1,291 3,081 3,873 16,783 50,349 101,989 305,967 1,325,857 3,977,571

Collatz Trajectory (154 steps to reach 1)

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

3,977,571 11,932,714 5,966,357 17,899,072 8,949,536 4,474,768 2,237,384 1,118,692 559,346 279,673 839,020 419,510 209,755 629,266 314,633 943,900 471,950 235,975 707,926 353,963 1,061,890 530,945 1,592,836 796,418 398,209 1,194,628 597,314 298,657 895,972 447,986 223,993 671,980 335,990 167,995 503,986 251,993 755,980 377,990 188,995 566,986 283,493 850,480 425,240 212,620 106,310 53,155 159,466 79,733 239,200 119,600 59,800 29,900 14,950 7,475 22,426 11,213 33,640 16,820 8,410 4,205

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