λ
Sequence Observatory

1,697,633

7 × 242519
Deficient Odd Composite

Starting at 1,697,633, the Collatz iteration reaches 1 after 158 steps. The first transition is 5092900; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 242519
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,940,160
Proper Divisor Sum 242,527
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #1697627 ← → #1697651

Radix Representation

Decimal 1697633
Binary 110011110011101100001 (21 bits)
Octal 0o6363541
Hexadecimal 0x19E761

Divisor Catalog (4)

1 7 242,519 1,697,633

Collatz Trajectory (158 steps to reach 1)

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

1,697,633 5,092,900 2,546,450 1,273,225 3,819,676 1,909,838 954,919 2,864,758 1,432,379 4,297,138 2,148,569 6,445,708 3,222,854 1,611,427 4,834,282 2,417,141 7,251,424 3,625,712 1,812,856 906,428 453,214 226,607 679,822 339,911 1,019,734 509,867 1,529,602 764,801 2,294,404 1,147,202 573,601 1,720,804 860,402 430,201 1,290,604 645,302 322,651 967,954 483,977 1,451,932 725,966 362,983 1,088,950 544,475 1,633,426 816,713 2,450,140 1,225,070 612,535 1,837,606 918,803 2,756,410 1,378,205 4,134,616 2,067,308 1,033,654 516,827 1,550,482 775,241 2,325,724

More profiles

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