3,921,649

3921649

Starting at 3,921,649, the Collatz iteration reaches 1 after 154 steps. The first transition is 11764948; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 3921649

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 3,921,650

Proper Divisor Sum 1

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #3921637 ← → #3921677

Radix Representation

Decimal	3921649
Binary	1110111101011011110001 (22 bits)
Octal	0o16753361
Hexadecimal	0x3BD6F1

Divisor Catalog (2)

1 3,921,649

Collatz Trajectory (154 steps to reach 1)

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

3,921,649 11,764,948 5,882,474 2,941,237 8,823,712 4,411,856 2,205,928 1,102,964 551,482 275,741 827,224 413,612 206,806 103,403 310,210 155,105 465,316 232,658 116,329 348,988 174,494 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

← Previous Integer #3,921,648 Browse Full Index Next Integer #3,921,650 →