λ
Sequence Observatory

3,718,006

2 × 191 × 9733
Deficient Even Composite

Starting at 3,718,006, the Collatz iteration reaches 1 after 141 steps. The first transition is 1859003; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 191 × 9733
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 5,606,784
Proper Divisor Sum 1,888,778
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #3717979 ← → #3718021

Radix Representation

Decimal 3718006
Binary 1110001011101101110110 (22 bits)
Octal 0o16135566
Hexadecimal 0x38BB76

Divisor Catalog (8)

1 2 191 382 9,733 19,466 1,859,003 3,718,006

Collatz Trajectory (141 steps to reach 1)

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

3,718,006 1,859,003 5,577,010 2,788,505 8,365,516 4,182,758 2,091,379 6,274,138 3,137,069 9,411,208 4,705,604 2,352,802 1,176,401 3,529,204 1,764,602 882,301 2,646,904 1,323,452 661,726 330,863 992,590 496,295 1,488,886 744,443 2,233,330 1,116,665 3,349,996 1,674,998 837,499 2,512,498 1,256,249 3,768,748 1,884,374 942,187 2,826,562 1,413,281 4,239,844 2,119,922 1,059,961 3,179,884 1,589,942 794,971 2,384,914 1,192,457 3,577,372 1,788,686 894,343 2,683,030 1,341,515 4,024,546 2,012,273 6,036,820 3,018,410 1,509,205 4,527,616 2,263,808 1,131,904 565,952 282,976 141,488

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