3,921,635

5 × 784327

Starting at 3,921,635, the Collatz iteration reaches 1 after 154 steps. The first transition is 11764906; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 784327

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,705,968

Proper Divisor Sum 784,333

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #3921601 ← → #3921637

Radix Representation

Decimal	3921635
Binary	1110111101011011100011 (22 bits)
Octal	0o16753343
Hexadecimal	0x3BD6E3

Divisor Catalog (4)

1 5 784,327 3,921,635

Collatz Trajectory (154 steps to reach 1)

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

3,921,635 11,764,906 5,882,453 17,647,360 8,823,680 4,411,840 2,205,920 1,102,960 551,480 275,740 137,870 68,935 206,806 103,403 310,210 155,105 465,316 232,658 116,329 348,988 174,494 87,247 261,742 130,871 392,614 196,307 588,922 294,461 883,384 441,692 220,846 110,423 331,270 165,635 496,906 248,453 745,360 372,680 186,340 93,170 46,585 139,756 69,878 34,939 104,818 52,409 157,228 78,614 39,307 117,922 58,961 176,884 88,442 44,221 132,664 66,332 33,166 16,583 49,750 24,875

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