λ
Sequence Observatory

159,559

379 × 421
Deficient Odd Composite

Starting at 159,559, the Collatz iteration reaches 1 after 214 steps. The first transition is 478678; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 379 × 421
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 160,360
Proper Divisor Sum 801
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #159553 ← → #159563

Radix Representation

Decimal 159559
Binary 100110111101000111 (18 bits)
Octal 0o467507
Hexadecimal 0x26F47

Divisor Catalog (4)

1 379 421 159,559

Collatz Trajectory (214 steps to reach 1)

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

159,559 478,678 239,339 718,018 359,009 1,077,028 538,514 269,257 807,772 403,886 201,943 605,830 302,915 908,746 454,373 1,363,120 681,560 340,780 170,390 85,195 255,586 127,793 383,380 191,690 95,845 287,536 143,768 71,884 35,942 17,971 53,914 26,957 80,872 40,436 20,218 10,109 30,328 15,164 7,582 3,791 11,374 5,687 17,062 8,531 25,594 12,797 38,392 19,196 9,598 4,799 14,398 7,199 21,598 10,799 32,398 16,199 48,598 24,299 72,898 36,449

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