2,916,990

2 × 3² × 5 × 32411

Starting at 2,916,990, the Collatz iteration reaches 1 after 200 steps. The first transition is 1458495; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 32411

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 7,584,408

Proper Divisor Sum 4,667,418

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #2916971 ← → #2917001

Radix Representation

Decimal	2916990
Binary	1011001000001001111110 (22 bits)
Octal	0o13101176
Hexadecimal	0x2C827E

Divisor Catalog (24)

1 2 3 5 6 9 10 15 18 30 45 90 32,411 64,822 97,233 162,055 194,466 291,699 324,110 486,165 583,398 972,330 1,458,495 2,916,990

Collatz Trajectory (200 steps to reach 1)

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

2,916,990 1,458,495 4,375,486 2,187,743 6,563,230 3,281,615 9,844,846 4,922,423 14,767,270 7,383,635 22,150,906 11,075,453 33,226,360 16,613,180 8,306,590 4,153,295 12,459,886 6,229,943 18,689,830 9,344,915 28,034,746 14,017,373 42,052,120 21,026,060 10,513,030 5,256,515 15,769,546 7,884,773 23,654,320 11,827,160 5,913,580 2,956,790 1,478,395 4,435,186 2,217,593 6,652,780 3,326,390 1,663,195 4,989,586 2,494,793 7,484,380 3,742,190 1,871,095 5,613,286 2,806,643 8,419,930 4,209,965 12,629,896 6,314,948 3,157,474 1,578,737 4,736,212 2,368,106 1,184,053 3,552,160 1,776,080 888,040 444,020 222,010 111,005

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