λ
Sequence Observatory

8,881,918

2 × 4440959
Deficient Even Composite

Starting at 8,881,918, the Collatz iteration reaches 1 after 168 steps. The first transition is 4440959; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 4440959
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 13,322,880
Proper Divisor Sum 4,440,962
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #8881909 ← → #8881921

Radix Representation

Decimal 8881918
Binary 100001111000011011111110 (24 bits)
Octal 0o41703376
Hexadecimal 0x8786FE

Divisor Catalog (4)

1 2 4,440,959 8,881,918

Collatz Trajectory (168 steps to reach 1)

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

8,881,918 4,440,959 13,322,878 6,661,439 19,984,318 9,992,159 29,976,478 14,988,239 44,964,718 22,482,359 67,447,078 33,723,539 101,170,618 50,585,309 151,755,928 75,877,964 37,938,982 18,969,491 56,908,474 28,454,237 85,362,712 42,681,356 21,340,678 10,670,339 32,011,018 16,005,509 48,016,528 24,008,264 12,004,132 6,002,066 3,001,033 9,003,100 4,501,550 2,250,775 6,752,326 3,376,163 10,128,490 5,064,245 15,192,736 7,596,368 3,798,184 1,899,092 949,546 474,773 1,424,320 712,160 356,080 178,040 89,020 44,510 22,255 66,766 33,383 100,150 50,075 150,226 75,113 225,340 112,670 56,335

More profiles

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