3,881,450

2 × 5² × 149 × 521

Starting at 3,881,450, the Collatz iteration reaches 1 after 123 steps. The first transition is 1940725; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 5^2 × 149 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 7,281,900

Proper Divisor Sum 3,400,450

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #3881443 ← → #3881461

Radix Representation

Decimal	3881450
Binary	1110110011100111101010 (22 bits)
Octal	0o16634752
Hexadecimal	0x3B39EA

Divisor Catalog (24)

1 2 5 10 25 50 149 298 521 745 1,042 1,490 2,605 3,725 5,210 7,450 13,025 26,050 77,629 155,258 388,145 776,290 1,940,725 3,881,450

Collatz Trajectory (123 steps to reach 1)

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

3,881,450 1,940,725 5,822,176 2,911,088 1,455,544 727,772 363,886 181,943 545,830 272,915 818,746 409,373 1,228,120 614,060 307,030 153,515 460,546 230,273 690,820 345,410 172,705 518,116 259,058 129,529 388,588 194,294 97,147 291,442 145,721 437,164 218,582 109,291 327,874 163,937 491,812 245,906 122,953 368,860 184,430 92,215 276,646 138,323 414,970 207,485 622,456 311,228 155,614 77,807 233,422 116,711 350,134 175,067 525,202 262,601 787,804 393,902 196,951 590,854 295,427 886,282

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