3,980,458

2 × 1990229

Starting at 3,980,458, the Collatz iteration reaches 1 after 167 steps. The first transition is 1990229; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1990229

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,970,690

Proper Divisor Sum 1,990,232

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #3980429 ← → #3980461

Radix Representation

Decimal	3980458
Binary	1111001011110010101010 (22 bits)
Octal	0o17136252
Hexadecimal	0x3CBCAA

Divisor Catalog (4)

1 2 1,990,229 3,980,458

Collatz Trajectory (167 steps to reach 1)

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

3,980,458 1,990,229 5,970,688 2,985,344 1,492,672 746,336 373,168 186,584 93,292 46,646 23,323 69,970 34,985 104,956 52,478 26,239 78,718 39,359 118,078 59,039 177,118 88,559 265,678 132,839 398,518 199,259 597,778 298,889 896,668 448,334 224,167 672,502 336,251 1,008,754 504,377 1,513,132 756,566 378,283 1,134,850 567,425 1,702,276 851,138 425,569 1,276,708 638,354 319,177 957,532 478,766 239,383 718,150 359,075 1,077,226 538,613 1,615,840 807,920 403,960 201,980 100,990 50,495 151,486

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