3,929,974

2 × 1964987

Starting at 3,929,974, the Collatz iteration reaches 1 after 141 steps. The first transition is 1964987; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1964987

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,894,964

Proper Divisor Sum 1,964,990

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #3929969 ← → #3929977

Radix Representation

Decimal	3929974
Binary	1110111111011101110110 (22 bits)
Octal	0o16773566
Hexadecimal	0x3BF776

Divisor Catalog (4)

1 2 1,964,987 3,929,974

Collatz Trajectory (141 steps to reach 1)

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

3,929,974 1,964,987 5,894,962 2,947,481 8,842,444 4,421,222 2,210,611 6,631,834 3,315,917 9,947,752 4,973,876 2,486,938 1,243,469 3,730,408 1,865,204 932,602 466,301 1,398,904 699,452 349,726 174,863 524,590 262,295 786,886 393,443 1,180,330 590,165 1,770,496 885,248 442,624 221,312 110,656 55,328 27,664 13,832 6,916 3,458 1,729 5,188 2,594 1,297 3,892 1,946 973 2,920 1,460 730 365 1,096 548 274 137 412 206 103 310 155 466 233 700

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