λ
Sequence Observatory

2,740,946

2 × 13 × 47 × 2243
Deficient Even Composite

Starting at 2,740,946, the Collatz iteration reaches 1 after 156 steps. The first transition is 1370473; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 13 × 47 × 2243
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 4,523,904
Proper Divisor Sum 1,782,958
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #2740943 ← → #2740957

Radix Representation

Decimal 2740946
Binary 1010011101001011010010 (22 bits)
Octal 0o12351322
Hexadecimal 0x29D2D2

Divisor Catalog (16)

1 2 13 26 47 94 611 1,222 2,243 4,486 29,159 58,318 105,421 210,842 1,370,473 2,740,946

Collatz Trajectory (156 steps to reach 1)

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

2,740,946 1,370,473 4,111,420 2,055,710 1,027,855 3,083,566 1,541,783 4,625,350 2,312,675 6,938,026 3,469,013 10,407,040 5,203,520 2,601,760 1,300,880 650,440 325,220 162,610 81,305 243,916 121,958 60,979 182,938 91,469 274,408 137,204 68,602 34,301 102,904 51,452 25,726 12,863 38,590 19,295 57,886 28,943 86,830 43,415 130,246 65,123 195,370 97,685 293,056 146,528 73,264 36,632 18,316 9,158 4,579 13,738 6,869 20,608 10,304 5,152 2,576 1,288 644 322 161 484

More profiles

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