λ
Sequence Observatory

2,786,894

2 × 11 × 131 × 967
Deficient Even Composite

Starting at 2,786,894, the Collatz iteration reaches 1 after 138 steps. The first transition is 1393447; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 11 × 131 × 967
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 4,599,936
Proper Divisor Sum 1,813,042
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #2786867 ← → #2786909

Radix Representation

Decimal 2786894
Binary 1010101000011001001110 (22 bits)
Octal 0o12503116
Hexadecimal 0x2A864E

Divisor Catalog (16)

1 2 11 22 131 262 967 1,441 1,934 2,882 10,637 21,274 126,677 253,354 1,393,447 2,786,894

Collatz Trajectory (138 steps to reach 1)

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

2,786,894 1,393,447 4,180,342 2,090,171 6,270,514 3,135,257 9,405,772 4,702,886 2,351,443 7,054,330 3,527,165 10,581,496 5,290,748 2,645,374 1,322,687 3,968,062 1,984,031 5,952,094 2,976,047 8,928,142 4,464,071 13,392,214 6,696,107 20,088,322 10,044,161 30,132,484 15,066,242 7,533,121 22,599,364 11,299,682 5,649,841 16,949,524 8,474,762 4,237,381 12,712,144 6,356,072 3,178,036 1,589,018 794,509 2,383,528 1,191,764 595,882 297,941 893,824 446,912 223,456 111,728 55,864 27,932 13,966 6,983 20,950 10,475 31,426 15,713 47,140 23,570 11,785 35,356 17,678

More profiles

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