λ
Sequence Observatory

4,246,642

2 × 449 × 4729
Deficient Even Composite

Starting at 4,246,642, the Collatz iteration reaches 1 after 136 steps. The first transition is 2123321; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 449 × 4729
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,385,500
Proper Divisor Sum 2,138,858
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #4246609 ← → #4246679

Radix Representation

Decimal 4246642
Binary 10000001100110001110010 (23 bits)
Octal 0o20146162
Hexadecimal 0x40CC72

Divisor Catalog (8)

1 2 449 898 4,729 9,458 2,123,321 4,246,642

Collatz Trajectory (136 steps to reach 1)

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

4,246,642 2,123,321 6,369,964 3,184,982 1,592,491 4,777,474 2,388,737 7,166,212 3,583,106 1,791,553 5,374,660 2,687,330 1,343,665 4,030,996 2,015,498 1,007,749 3,023,248 1,511,624 755,812 377,906 188,953 566,860 283,430 141,715 425,146 212,573 637,720 318,860 159,430 79,715 239,146 119,573 358,720 179,360 89,680 44,840 22,420 11,210 5,605 16,816 8,408 4,204 2,102 1,051 3,154 1,577 4,732 2,366 1,183 3,550 1,775 5,326 2,663 7,990 3,995 11,986 5,993 17,980 8,990 4,495

More profiles

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