λ
Sequence Observatory

3,679,716

22 × 3 × 306643
Abundant Even Composite

Starting at 3,679,716, the Collatz iteration reaches 1 after 221 steps. The first transition is 1839858; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 306643
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 8,586,032
Proper Divisor Sum 4,906,316
Digit Sum / Digital Root 39 (Root: 3)
Adjacent Primes #3679693 ← → #3679729

Radix Representation

Decimal 3679716
Binary 1110000010010111100100 (22 bits)
Octal 0o16022744
Hexadecimal 0x3825E4

Divisor Catalog (12)

1 2 3 4 6 12 306,643 613,286 919,929 1,226,572 1,839,858 3,679,716

Collatz Trajectory (221 steps to reach 1)

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

3,679,716 1,839,858 919,929 2,759,788 1,379,894 689,947 2,069,842 1,034,921 3,104,764 1,552,382 776,191 2,328,574 1,164,287 3,492,862 1,746,431 5,239,294 2,619,647 7,858,942 3,929,471 11,788,414 5,894,207 17,682,622 8,841,311 26,523,934 13,261,967 39,785,902 19,892,951 59,678,854 29,839,427 89,518,282 44,759,141 134,277,424 67,138,712 33,569,356 16,784,678 8,392,339 25,177,018 12,588,509 37,765,528 18,882,764 9,441,382 4,720,691 14,162,074 7,081,037 21,243,112 10,621,556 5,310,778 2,655,389 7,966,168 3,983,084 1,991,542 995,771 2,987,314 1,493,657 4,480,972 2,240,486 1,120,243 3,360,730 1,680,365 5,041,096

More profiles

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