λ
Sequence Observatory

1,361,559

3 × 19 × 23887
Deficient Odd Composite

Starting at 1,361,559, the Collatz iteration reaches 1 after 168 steps. The first transition is 4084678; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 19 × 23887
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,911,040
Proper Divisor Sum 549,481
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1361533 ← → #1361573

Radix Representation

Decimal 1361559
Binary 101001100011010010111 (21 bits)
Octal 0o5143227
Hexadecimal 0x14C697

Divisor Catalog (8)

1 3 19 57 23,887 71,661 453,853 1,361,559

Collatz Trajectory (168 steps to reach 1)

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

1,361,559 4,084,678 2,042,339 6,127,018 3,063,509 9,190,528 4,595,264 2,297,632 1,148,816 574,408 287,204 143,602 71,801 215,404 107,702 53,851 161,554 80,777 242,332 121,166 60,583 181,750 90,875 272,626 136,313 408,940 204,470 102,235 306,706 153,353 460,060 230,030 115,015 345,046 172,523 517,570 258,785 776,356 388,178 194,089 582,268 291,134 145,567 436,702 218,351 655,054 327,527 982,582 491,291 1,473,874 736,937 2,210,812 1,105,406 552,703 1,658,110 829,055 2,487,166 1,243,583 3,730,750 1,865,375

More profiles

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