λ
Sequence Observatory

1,559,699

17 × 23 × 3989
Deficient Odd Composite

Starting at 1,559,699, the Collatz iteration reaches 1 after 132 steps. The first transition is 4679098; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 17 × 23 × 3989
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,723,680
Proper Divisor Sum 163,981
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #1559689 ← → #1559713

Radix Representation

Decimal 1559699
Binary 101111100110010010011 (21 bits)
Octal 0o5746223
Hexadecimal 0x17CC93

Divisor Catalog (8)

1 17 23 391 3,989 67,813 91,747 1,559,699

Collatz Trajectory (132 steps to reach 1)

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

1,559,699 4,679,098 2,339,549 7,018,648 3,509,324 1,754,662 877,331 2,631,994 1,315,997 3,947,992 1,973,996 986,998 493,499 1,480,498 740,249 2,220,748 1,110,374 555,187 1,665,562 832,781 2,498,344 1,249,172 624,586 312,293 936,880 468,440 234,220 117,110 58,555 175,666 87,833 263,500 131,750 65,875 197,626 98,813 296,440 148,220 74,110 37,055 111,166 55,583 166,750 83,375 250,126 125,063 375,190 187,595 562,786 281,393 844,180 422,090 211,045 633,136 316,568 158,284 79,142 39,571 118,714 59,357

More profiles

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