λ
Sequence Observatory

4,369,642

2 × 199 × 10979
Deficient Even Composite

Starting at 4,369,642, the Collatz iteration reaches 1 after 211 steps. The first transition is 2184821; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 199 × 10979
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,588,000
Proper Divisor Sum 2,218,358
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #4369591 ← → #4369649

Radix Representation

Decimal 4369642
Binary 10000101010110011101010 (23 bits)
Octal 0o20526352
Hexadecimal 0x42ACEA

Divisor Catalog (8)

1 2 199 398 10,979 21,958 2,184,821 4,369,642

Collatz Trajectory (211 steps to reach 1)

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

4,369,642 2,184,821 6,554,464 3,277,232 1,638,616 819,308 409,654 204,827 614,482 307,241 921,724 460,862 230,431 691,294 345,647 1,036,942 518,471 1,555,414 777,707 2,333,122 1,166,561 3,499,684 1,749,842 874,921 2,624,764 1,312,382 656,191 1,968,574 984,287 2,952,862 1,476,431 4,429,294 2,214,647 6,643,942 3,321,971 9,965,914 4,982,957 14,948,872 7,474,436 3,737,218 1,868,609 5,605,828 2,802,914 1,401,457 4,204,372 2,102,186 1,051,093 3,153,280 1,576,640 788,320 394,160 197,080 98,540 49,270 24,635 73,906 36,953 110,860 55,430 27,715

More profiles

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