λ
Sequence Observatory

1,167,809

47 × 24847
Deficient Odd Composite

Starting at 1,167,809, the Collatz iteration reaches 1 after 222 steps. The first transition is 3503428; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 47 × 24847
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,192,704
Proper Divisor Sum 24,895
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1167799 ← → #1167811

Radix Representation

Decimal 1167809
Binary 100011101000111000001 (21 bits)
Octal 0o4350701
Hexadecimal 0x11D1C1

Divisor Catalog (4)

1 47 24,847 1,167,809

Collatz Trajectory (222 steps to reach 1)

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

1,167,809 3,503,428 1,751,714 875,857 2,627,572 1,313,786 656,893 1,970,680 985,340 492,670 246,335 739,006 369,503 1,108,510 554,255 1,662,766 831,383 2,494,150 1,247,075 3,741,226 1,870,613 5,611,840 2,805,920 1,402,960 701,480 350,740 175,370 87,685 263,056 131,528 65,764 32,882 16,441 49,324 24,662 12,331 36,994 18,497 55,492 27,746 13,873 41,620 20,810 10,405 31,216 15,608 7,804 3,902 1,951 5,854 2,927 8,782 4,391 13,174 6,587 19,762 9,881 29,644 14,822 7,411

More profiles

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