3,172,486

2 × 239 × 6637

Starting at 3,172,486, the Collatz iteration reaches 1 after 71 steps. The first transition is 1586243; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 239 × 6637

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 4,779,360

Proper Divisor Sum 1,606,874

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #3172471 ← → #3172501

Radix Representation

Decimal	3172486
Binary	1100000110100010000110 (22 bits)
Octal	0o14064206
Hexadecimal	0x306886

Divisor Catalog (8)

1 2 239 478 6,637 13,274 1,586,243 3,172,486

Collatz Trajectory (71 steps to reach 1)

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

3,172,486 1,586,243 4,758,730 2,379,365 7,138,096 3,569,048 1,784,524 892,262 446,131 1,338,394 669,197 2,007,592 1,003,796 501,898 250,949 752,848 376,424 188,212 94,106 47,053 141,160 70,580 35,290 17,645 52,936 26,468 13,234 6,617 19,852 9,926 4,963 14,890 7,445 22,336 11,168 5,584 2,792 1,396 698 349 1,048 524 262 131 394 197 592 296 148 74 37 112 56 28 14 7 22 11 34 17

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